Database Develop

SD card issues

Has anyone else got issues with the use of SD cards in their Alpine derivitive?
Like the card not showing as being there when you try to write to it or explore the phone with file explorer or ActiveSync?
Perhaps videos on the card stop whilst watching them with a file error or the like?
Mine does with all 4 different makes of card I have tried and I am wondering if this is a common fault.

Yep its a very common fault.
I think everyone has the same experiences. (Me included)
what version ROMs do you have ?
there is an upgrade available if yours is the origonal, the upgrade will help a bit.
have a look here ... http://forum.xda-developers.com/viewtopic.php?t=25801
But read to the Third page as "Pug" psted a more up to date package

I am using Pug's Radio version 1.03 hybrid, but continue to suffer!
I have downloaded a SD Card benchmarking utility, my card is showing as 4.7x, but I don't know how that relates to manufacturers quoted speeds. It is either painfully slow or uses a different scale!

1GB SD from Transcend
Some ppl said the Transcend 512 SD works well on the 2i, just wonder if the 1 GB will work as good as the 512...
Any comment will be appreciated

Does anyone know where to get the 4 GB SD-Cards cheapest?
And what branches are there?
A-Data and Pretec i know, but are there more?

Re: 1GB SD from Transcend
bryan_suen said:
Some ppl said the Transcend 512 SD works well on the 2i, just wonder if the 1 GB will work as good as the 512...
Any comment will be appreciated
Click to expand...
Click to collapse
I bought a Transcend 256mb 80X card an my XDA IIi has worked flawlessly since with no lock-ups what-so-ever.
I can't speak for the 1mb though!
This seems to be a power issue, the Transcend cards are very low voltage and ampage. My old SanDisk card would fail every time a network function took place, and they are high power drains.

I bought a OEM (white labelled) 1GB MMC and use it on my IIi. Everything is fine so far...
Is there any difference between MMC and SD in terms of IIi flaws?
:?:

Only SD cards are supported by the XDA2i, although if you use the backpack addon i think you can use MMC, but not without the addon.

Someone told me once that the IIi works best with a fast SD card like the Kingston Elite Pro. I changed to that and all my problems when away. TomTom5 stopped locking up as well.

Kingston SD Card
Are there any other users who have used the Kingston Elite Pro SD Card. I have been looking around for a while, and the Kingston Elite Pro 1 GB / 512 MB seem to be a single layered card.
I also wanted to confirm that when using a Sandisk SD card, I am having lockup's. If I take the card out of the slot, the XDA2i begins to respond again. Though I must admit I havent tested it exhaustively.

Kingston SD Card
Are there any other users who have used the Kingston Elite Pro SD Card. I have been looking around for a while, and the Kingston Elite Pro 1 GB / 512 MB seem to be a single layered card.
I also wanted to confirm that when using a Sandisk SD card, I am having lockup's. If I take the card out of the slot, the XDA2i begins to respond again. Though I must admit I havent tested it exhaustively.

Danny-B- said:
Only SD cards are supported by the XDA2i, although if you use the backpack addon i think you can use MMC, but not without the addon.
Click to expand...
Click to collapse
You mean CF not MMC. SD and MMC both work in SD slots, but not vice versa.
CF type 2 is the slot on the VGA backpack.

SD Card issue
I understand all SD cards work.. I was trying to find the compatability of the same with Tomtom Navigator 5. I understand from the earlier posts that a multi layer card causes lockups. The transcend 80X card works fine. I was inclined towards buying a Kingston Elite Pro and hence the question...

SD Card issue
I have removed this message as it was posted twice by mistake

another Newbie,.,
hiya all. . i'm recieving my Xda 2i in about an hour.. just wondering which SD memory works best.. i read a few posts and quite frankly being quite confused,, was about to order a scandisk SD 1 gb card.. but i read somewhere ppl saying this is bad??
is that true?
thanks..

The Sandisk is not the best one. I have one and it causes lockups being a multilayer card. The transcend 80x works fine ( what i gather from different forums ). The Kingston Elite Pro also has some very good feedback. I am purchasing a 1 gb Kingston elite pro today. Sandisk is a no no... [/quote]

Thanks m8...
Kingston elite pro huh? like this one?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=7550999880

zehave said:
Thanks m8...
Kingston elite pro huh? like this one?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=7550999880
Click to expand...
Click to collapse
I cannot browse Ebay at work so couldnt confirm. But you could find the card on this url:
http://www.epcbuyer.com/products.asp?recnumber=5761
Its around £44 on this site.
I tried to find a deal at ebay from home yesterday. They are around £39 and are being shipped from HongKong. I dont know when we will receive it. There could be excise + other charges. I am not sure.

hmm.. well on this guy whom is shipping from HK is selling it at 25 quid including shipping.. .trouble is i want it asap .. Heh... buying from him seems like 20 quid cheaper.. howeber have to wait for about 10 days or so.. . so he sez.. not to mention customs and duties.. ....
i just might shell out 44 quid then...

zehave said:
hmm.. well on this guy whom is shipping from HK is selling it at 25 quid including shipping.. .trouble is i want it asap .. Heh... buying from him seems like 20 quid cheaper.. howeber have to wait for about 10 days or so.. . so he sez.. not to mention customs and duties.. ....
i just might shell out 44 quid then...
Click to expand...
Click to collapse
Well you also avoided the same trap... I almost fell into. Though it says £12 (Card) + £13 for postage, but you didnt have a look at the mandatory insurance which stands at £13. In all its around £38 + Other expenses. Not to mention the pain of getting it from hongkong...
Good decision at last...

SDHC 4Gb on Blueangel with AKU3.5

Guys, I know this has been asked before - I just cant seem to find a conclusive answer. But here goes;
Will a SDHC 4GB SD card work on my Blueangel with Helmi's BA WM2k5 AKU3.5 (v.1.4 )? Has anyone got one working?

Hi J_Hutt
I have a 4gb SD card in my BA and it works just fine.
http://en.wikipedia.org/wiki/Secure_Digital_card
Untill reading your question and the wikipedia page above, I wasn't aware that my 4gb card was an SDHC card. My card does not show an SDHC logo, but from that wikipedia article it seems all cards >2gb are SDHC (1024byte blocks as opposed to 512).
We are of course at the mercy of wikipedia here though, its information is not always perfect.

Thanks for that, tho I gather the SD"HC" cards are different to the standard SD and not all devices are compatible (same form factor, just something about transfer rate / capacity / Fat32 file system etc)
Is anyone using a SDHC card in their WM% Blueangel?

As I can understand, there are some 4GB SD - non SDHC cards. Google for TS4GSD150. Or read this: http://www.hjreggel.net/cardspeed/index.html#special-sd.html - section "SD and SDHC Card Size Overlap"

Yeah I am aware of that (non SDHC 4GB cards) Situation is that I bought a 4GB SD (not SDHC) card online and it was DOA (not just in my BA, but in readers etc)
Supplier has just emailed me offering to replace it, but do I want a SDHC at no extra cost blah blah....and I am thinking, why not if it will work.
So, again...has anyone used a SDHC in their BA?

You can get it, and if it doesn't work on BA you will have a good excuse to buy a new smartphone...

thingonaspring said:
Hi J_Hutt
I have a 4gb SD card in my BA and it works just fine.
http://en.wikipedia.org/wiki/Secure_Digital_card
Untill reading your question and the wikipedia page above, I wasn't aware that my 4gb card was an SDHC card. My card does not show an SDHC logo, but from that wikipedia article it seems all cards >2gb are SDHC (1024byte blocks as opposed to 512).
We are of course at the mercy of wikipedia here though, its information is not always perfect.
Click to expand...
Click to collapse
Hi thingonaspring,
which card you have (brand, model..)? I would want to buy a 4gb's card for my Q9090. What I can buy?
Thx
Bb

4Gb SDHC card doesn't work
Not that long ago, I bought a 4Gb SDHC card and not knowing about SDHC (thinking it was another marketing term) and even though it was working fine in the cheap card reader on my desk, it did not do anything in my BA.
Went back to the supplier and switched it for a regular SD card and that one has been working fine since.

SDHC cards
SDHC cards are 3d generation SD card technology,
They have some abilities,
1 to 32 gb capacity
Improved read and write speed,
Data stability,
Content encryption etc..
This technology requires hardware support which device will use, there is no software support. ( Except USB 2.0 cardreader used computers. )
Don't buy SDHC cards, there is already normal 4 gb SD card from SanDiskand kingston, and future 8 gb will coming.
Thx.

EQUANCY said:
They have some abilities,
1 to 32 gb capacity
Click to expand...
Click to collapse
That's a bit shortsighted IMHO, 32 gb isn't all that much these days.

i found this when i was searching. If anyone found a regular 8 GB SD card please post it here, i'll be tempted to buy it for sure because it seems like thats the best way to go. Overall if you do get the BA to accept this type of card it wont be compatible in other older devices thats currenly out now. So i think buying a SDHC Card isn't a good investment right now.
But please don't let me change anyone's mind, I'm just looking for a good investment right now.
http://www.modaco.com/index.php?showtopic=251468&pid=802703&st=0&#entry802703

SD Card info ... from the Windows Mobile Team ...
Everything you wanted to know about SD Cards, but were afraid to ask:
http://blogs.msdn.com/windowsmobile/archive/2007/01/12/everything-you-want-to-know-about-sd.aspx
The SD Standard used by the PPC phones at present does not support larger than 2Gb by definition. However, some 4Gb SD Cards will work in the BA, but this depends solely on the block-size which is being used by the cards.
Your mileage may vary ... try before you buy, and if you do find a 4Gb or an 8Gb one which works (and gets 8Gb of storage - not overlapped!!!) then post the brand/make/model here, as I'm sure many people would love to take their music collection along - a.la.ipod style ...

I have a knockoff SanDisk 4Gb from ebay that works in my BlueAngel (wm2003SE)
I also have the Transcend 4gb 150X card that worked fine. The card itself has problems, which is why I swapped to the knockoff.
beware that some usb readers are not able to deal with 4gb SD cards (notably the Lexar 12 in 1)
If your reader is IDing the card as 900 and change MBs your reader is struggling try another.
I have had no problems with the HTC unit and the cards. The transcend was messing up the same way in the device and every reader I threw at it...
Good luck
Gil

EQUANCY said:
SDHC cards are 3d generation SD card technology,
They have some abilities,
1 to 32 gb capacity
Improved read and write speed,
Data stability,
Content encryption etc..
This technology requires hardware support which device will use, there is no software support. ( Except USB 2.0 cardreader used computers. )
Don't buy SDHC cards, there is already normal 4 gb SD card from SanDiskand kingston, and future 8 gb will coming.
Thx.
Click to expand...
Click to collapse
Incorrect, I just posted about this. SDHC format can handle much more storage than 32 GB, however there are physical theoretical limits to flash memory, just like there are those for CPU's. My post
Regards,
Jason

What is incorrect?
JKR said:
Incorrect, I just posted about this. SDHC format can handle much more storage than 32 GB, however there are physical theoretical limits to flash memory, just like there are those for CPU's. My post
Regards,
Jason
Click to expand...
Click to collapse
There is no incorrect comment.
SDHC is an 3 generation NandFlash technology.
Now, The limit is 32 gb at this time,
Mean of limit is Secure, stable and usable.
May be some firms reached this limit (however you know more than 32 gb I don't now) but not this time.
There is only 8 gb cards on sale and 16 and 32's are coming in 2007-8.
Why i write 1-32 gb?
Because, there is no 512 mb SDHC but well 1 gb SDHC, you may find it.
What is SDHC, why not compitable with standart SD cards.
#1) Disk write and Read functions and commands are changed, New SDHC cards can write upto 6-10 mbps to disk and 50-80 mbps Read from disk. ( I sad disk them, they have no unique name ). This differents come from his hardware structure -->> I/O Busses, Voltage levels, frequenties and other reasons.
#2) They have a chip, he manage reading and writing operations, they have no processor, may you say DCU ( Data Controlling unit, that is mine ID ).
#3) They developed with NandFlash 2.0 technology, This is third of Nano Sized Memory blocks technology. ( You may find somethings about it ).
At the and.
SDHC cards are not compitable with SD 1.0 and 1.1 platforms, not like bluetooth 1.0 and 2.0, there is no old format support. ( No one has been sad yet )
if you want to buy SDHC, be sure the compatibility.
Blueangel's SD 1.1 slots have 1.2/12 mbps speeds ( Write/Read )
"This is not maximum speed of SD 1.1 they reached 2.1/25 mbps on USB 2.0 cardreaders."
The numbers may be some wrong, but be sure they are nearly values.
And lastone.
CPU's are not simple units. And they have so much parts.
You may find somethinks like of this comments in the Internet.
Just search it.

Come on ppl buy buy buy
http://search.ebay.com/search/search.dll?from=R40&satitle=8+gb+sd+card
Just leave one flash drive and the 8GB combo for me. When your done just let us hear the reviews

EQUANCY said:
There is no incorrect comment...Now, The limit is 32 gb at this time
Click to expand...
Click to collapse
Well perhaps "incorrect" was a bit harsh. It all depends on where you get your info. here lists the ultimate capacity under the new memory addressing scheme as 2 TB. Where as here the maximum size is listed as 32 GB. Now I did mention that there are physical limitations of flash memory, and may not be able to reach the 2 TB limit, but under the SDHC standard, 2 TB is supported.
EQUANCY said:
SDHC cards are not compitable with SD 1.0 and 1.1 platforms, not like bluetooth 1.0 and 2.0, there is no old format support. ( No one has been sad yet )...
Click to expand...
Click to collapse
This is what I had read also. I had done some little investigation into this a few months back, so I'm no stranger to searching the web, and had done so back then and once again. With that said, the second link above actually had some new info. It lists SDHC readers as being backwards compatible. Where as what I had read sometime back, was that there were legal restrictions imposed by the SD group to prevent this. Perhaps this has changed now. Well I suppose I may be defending a bad premise, because to be honest, when I had originally searched about SDHC, I didn't come across the 32 GB limit. And I suppose I could have been more specific about what I was referring to in your post.
Regards,
Jason

Good but...
This is mine last post about SDHC.
32 is Maximum reached SDHC capacity at this time, 2 TB is only theorical limit.
When someone make 2 TB SDHC then you can say the upto 2 TB capacity.
May be 2 TB SDHC's will come in future, then we can talk about 2 tb.
This is an example:
Intel goes to 45 nm technology, and that give a way to 8 or more core processor and upto 3 ghz per core speed without Netburst technoloy.
"Can you say there is already 8 core processor with 24 ghz total speed?"
You sad:
"It lists SDHC readers as being backwards compatible"
1-I sad about cards, not readers.
2-I sad SD 1.0 and 1.1 slots are can not use SDHC cards, I didn't sad SDHC Cardreaders can not read SD cards.
I write somethings about SDHC, because someone can buy them, this tech useless for our PDA's, i want help people. Because
I'v got so much help here,
May we can use SDHC's in nexttimes with external adapters or converters as SD.
May be...

EQUANCY said:
...You sad:
"It lists SDHC readers as being backwards compatible"
1-I sad about cards, not readers.
2-I sad SD 1.0 and 1.1 slots are can not use SDHC cards, I didn't sad SDHC Cardreaders can not read SD cards...
Click to expand...
Click to collapse
I wasn't correcting you when I said this, I was correcting my statement that there was no compatibility. I had read at one point that there was no backwards compatibility (for legal reasons), but it looks like they changed that. but I will say that technically there aren't any 32 GB SDHC cards either. It is just a matter of what the question is asking, what is the largest capacity in development vs. what is the largest capacity possible.
Regards,
Jason

Hey guys i just bought the 8GB SDHC card and the flash drive reader/writer that comes with it.
It will take about two weeks in shipping for me so i'll keep you guys inform of the type and where i bought it from.

16 GB micro SD card not available at my vendor

at this very moment; so anybody having found out, whether a 16 GB card would work in Touch Dual?
we

I only have a 6GB, that is working very well!

Where do you find 16GB Micro SD? I dont think it is exist at this moment.

There is no such thing as a 16GB microSD, at least not outside a testing lab. The biggest on general sale is 8GB.

SanDisk has also announced a 12GB which is due out at summer. They expect it will actually be 16GB by the time it comes out.
What I am surprised about is that I haven't seen other companies get more quickly to the 6/8 range. With smartphones going to only one slot, the larger cards are helpful.
My preference would still be TWO microSD slots, so I could use one for work and the other for interchangeable media.

Well I guess if you have $200+ lying around you could go here...
http://www.memorysuppliers.com/sa16trmimmec.html
I know nothing of this vendor, but its the only site I've seen so far offering 12/16GB Micro-SD.
Looks as though this will remain out of my price range for some time.

Enjoy the 16g card out in nov
http://www.slipperybrick.com/2008/09...s-for-mobiles

Kaiser Memory Card capacity

Some people say Kaiser can manage up to 8GB and some say it can manage
up to 16GB all I have is 4GB and its more then enough. But a friend wants to send me one and asked me what is would prefer. I would go for 16GB but I don't know if I can use it. I have a AT&T Tilt.
Thank You.

Hi and welcome around,
searching a little bit around may have answered your question .
The Kaiser definitely supports µSDHC up to 16 GB. As soon as 32 GB comes up, it will also support it.

Got a 16Gb in mine. Runs great. Just got to find stuff to fill it now!

What 16 GB are you using?

Edris said:
Some people say Kaiser can manage up to 8GB and some say it can manage
up to 16GB all I have is 4GB and its more then enough. But a friend wants to send me one and asked me what is would prefer. I would go for 16GB but I don't know if I can use it. I have a AT&T Tilt.
Thank You.
Click to expand...
Click to collapse
Thanks Guys.

SaltyDawg said:
What 16 GB are you using?
Click to expand...
Click to collapse
I also have a 16 gb micro sdhc card - got it a couple of weeks ago. It's a sandisk, and works great. I've had no problem whatsoever getting more than half filled already!

Edris said:
Some people say Kaiser can manage up to 8GB and some say it can manage
up to 16GB all I have is 4GB and its more then enough. But a friend wants to send me one and asked me what is would prefer. I would go for 16GB but I don't know if I can use it. I have a AT&T Tilt.
Thank You.
Click to expand...
Click to collapse
I am also using a 16GB sandisk. It works great and have no problems. The only thing I will say, as with any flash memory, is that mine is just below 15GB. I personally think that the labeled amount should be the minimum amount available. Sorry for that... go for the 16GB!

Where are you guys buying these 16GB cards? I can't even find them on any of the major retailers' sites. I'm curious to see how much they run. 16Gb used to be a pipe dream to me. heck, the 4 gig I'm currently using used to be such a pipe dream. I remember when I paid $350 for a 1 gig SD card...
16 gigs would be lovely though. I could load up on music.

SaltyDawg said:
Where are you guys buying these 16GB cards? I can't even find them on any of the major retailers' sites. I'm curious to see how much they run. 16Gb used to be a pipe dream to me. heck, the 4 gig I'm currently using used to be such a pipe dream. I remember when I paid $350 for a 1 gig SD card...
16 gigs would be lovely though. I could load up on music.
Click to expand...
Click to collapse
Here are 2 threads dicussing where to find them: here and here.

I got my 16 gb sandisk card on ebay, for $52.00 delivered. I've bought a number of accessories for my tilt off ebay. It's a good place to buy things, as long as you buy from a seller with a really good feedback rating.

16 GB SanDisk Best Buy $100.00

danfr said:
16 GB SanDisk Best Buy $100.00
Click to expand...
Click to collapse
You can get far better prices than that like this http://www.amazon.com/SanDisk-16GB-...2?ie=UTF8&s=electronics&qid=1230674794&sr=8-2

16GB MicroSDHC Class 6 card (DRATS!) - ONLY $24.99 (s&h FREE)
The best bang for your buck right now for a Class 6 MicroSDHC card, is the 16GB made by ADATA - from Newegg.com:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820211300
- - -
What SPEED is the Tilt able to handle for the MicroSDHC cards? There are Class 2, 4, and 6 - Class 6 being the fastest. However, if the Tilt is only able to transfer up to or slightly below the speed of a Class 4 card, then buying a Class 6 rather than a Class 4 would be a total waste of money for the higher speed -
- - -
I was going to post something about the ADATA 8GB card I actually have, because I thought it was a great buy at 18.99, but when I checked their web site today, it turns out since I bought mine only about 2 weeks ago, they posted the above Class 6 speed card with 16GB!
I would make a fuss and return my old one, the only thing is, I don't even have any way of filling up the 8GB card - so I may as well wait until the 32Gb cards come out - also anothjer reason is my Tilt is getting to bee a little long in the tooth with scratches, etc. - so by the time the 32GB cards come down in price there may be other models coming onto the market I want to buy instead of the current phone I have now...

KruseLudsMobile said:
The best bang for your buck right now for a Class 6 MicroSDHC card, is the 16GB made by ADATA - from Newegg.com:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820211300
- - -
What SPEED is the Tilt able to handle for the MicroSDHC cards? There are Class 2, 4, and 6 - Class 6 being the fastest. However, if the Tilt is only able to transfer up to or slightly below the speed of a Class 4 card, then buying a Class 6 rather than a Class 4 would be a total waste of money for the higher speed -
- - -
I was going to post something about the ADATA 8GB card I actually have, because I thought it was a great buy at 18.99, but when I checked their web site today, it turns out since I bought mine only about 2 weeks ago, they posted the above Class 6 speed card with 16GB!
I would make a fuss and return my old one, the only thing is, I don't even have any way of filling up the 8GB card - so I may as well wait until the 32Gb cards come out - also anothjer reason is my Tilt is getting to bee a little long in the tooth with scratches, etc. - so by the time the 32GB cards come down in price there may be other models coming onto the market I want to buy instead of the current phone I have now...
Click to expand...
Click to collapse
There will no doubt be better phones on the market in the near future (HTC's leaked road map has some nice looking phones due out this year, and that Nvidia Tegra system looks awesome). But, the beauty of the situation here is, pretty much any phone worth buying in the future should have a micro SD slot. It kind of sucked buying SD cards with Mini SD on the horizon, and then buying Mini SD cards with Micro SD on the horizon. But Micro SD seems to have settled in as the standard, so your 16 gig card will probably work on your next device.

According to A-Data's website, they don't make a 16gb microsd card
The link above takes you to a 16gb flash card, but it's not a microsd card. The cheapest ones I've seen are 50+ on ebay, probably fakes, but I have an 8gb, probably fake that I go on ebay, and it works perfectly.

I have a 16 gb micro sd card that I bought on ebay, and it works great. I've had no problems whatsoever with it, and I've really loaded it up! I paid $52.00 for it (shipping included).

It Supports up to 32gb

Correction 16GB MicrSDHC not yet available?
My first post tothis thread was wrong, that was a 16GB sd card, not a micro sdhc card. All I can find for highest capacity (class 6) is an 8GB card which I am now using (and itis fast):
http://www.newegg.com/Product/Product.aspx?Item=N82E16820211341
And it's only $15.49!
It appears that the class 4 and class 6 make little difference in speed tests,maybe the tilt read/write throughput gets maxed out at the class 4 speed??? Any thoughts anyone?

[Q] SDHC 32 gig class 6

Just got NC for early Father's Day! I luv ma fam!
Everything I been finding here talks about 2,4, or 8 gigs SD cards.
NC says it can use up to 32gig.
Anyone tried this? I figure SDHC 32 G class 6 would work.

MrGeek said:
Just got NC for early Father's Day! I luv ma fam!
Everything I been finding here talks about 2,4, or 8 gigs SD cards.
NC says it can use up to 32gig.
Anyone tried this? I figure SDHC 32 G class 6 would work.
Click to expand...
Click to collapse
Everything I've read states the higher capacity cards don't do well running ROMs. Like you I'm new to the nook so I"m sure someone else with more experience will chime in.

I have a 32 gig card installed right now. Works just fine as a data card.
If you want to run custom ROMS off the card, make sure its a sandisk. That flapping sound about larger sized card being bad for Roms is a buncha crap in my opinion (and I have the benchmarks on this card to prove it), but the BRAND of card makes a huge difference when running Roms. Avoid transcend and PNY like the plague.
That said, if you just want the card for data, then yes, the NC can handle them just fine.

skwalas said:
I have a 32 gig card installed right now. Works just fine as a data card.
If you want to run custom ROMS off the card, make sure its a sandisk. That flapping sound about larger sized card being bad for Roms is a buncha crap in my opinion (and I have the benchmarks on this card to prove it), but the BRAND of card makes a huge difference when running Roms. Avoid transcend and PNY like the plague.
That said, if you just want the card for data, then yes, the NC can handle them just fine.
Click to expand...
Click to collapse
What size Sandisk card do you recommend for running custom ROMs? I've read 8 but I really would like to run a 16.

With a sandisk, I can't see any reason why a 16 or even 32 gig card would give you trouble on roms.
Using the card to run your "operating system" seems to require a higher small-block read/write speed than most cards have. Two things seem to affect it: 1) brand (sandisk is currently the only way to go), and 2)it seems that higher classed cards sacrifice the small block performance a bit. This makes sense to me, since the classification related to large block sequential read/writes (iirc), so some trade-iffs are always expected.
See this thread for useful things.
And I think most people are buying the smaller card mostly because of price, and partly due to a herd mentality on threads like the above.

Sandisk 16gb is just fine for running the Rom off the sd card; that is my current setup.

LBN1 said:
Sandisk 16gb is just fine for running the Rom off the sd card; that is my current setup.
Click to expand...
Click to collapse
What class? I'm having a hard time finding class 4.

skwalas said:
I have a 32 gig card installed right now. Works just fine as a data card.
If you want to run custom ROMS off the card, make sure its a sandisk. That flapping sound about larger sized card being bad for Roms is a buncha crap in my opinion (and I have the benchmarks on this card to prove it), but the BRAND of card makes a huge difference when running Roms. Avoid transcend and PNY like the plague.
That said, if you just want the card for data, then yes, the NC can handle them just fine.
Click to expand...
Click to collapse
Funny how all the Transcend cards in all 3 Nooks in my house are brilliant. I've used Transcend for years and have never had a problem, be it in my cameras to my phones.

Nburnes said:
Funny how all the Transcend cards in all 3 Nooks in my house are brilliant. I've used Transcend for years and have never had a problem, be it in my cameras to my phones.
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Click to collapse
I was referring to the specific instance of using transcend for running cm7 for example. I understand transcend and patriot are decent when used for data, and I have PNY cards in our cameras, so they seem to work fine for data.

I have a wintec SDCH 16g class 4 and it works fine, but I only use it for data.

I've been looking into this, and here's what it boils down to:
Most MicroSD cards are set up for data transfer aimed at large files, such as video or high resolution pictures. The majority of the market these cards are manufactured for are digital camcorders, cameras, and smart phones with cameras.
They've gotten great at streaming media to and from the cards, and using them as storage mediums.
Running an operating system from the card requires a whole lot of small data transfers, which is not a specification that manufacterers pay much attention to. Most people would never notice improvement in this area of the manufacturing process, so the companies don't waste money on it.
Different manufacturers have different ideas of what their product should be capable of.
SanDisk is the brand that has consistently tested better for small data transfer then other card makers.
Running programs/operating systems from a MicroSD card is a new animal, something that hasn't really been done before now, and the tablet market is still in it's infancy.
I'm sure this issue will be addressed by the hardware makers of memory cards over the next year or so, but for now we are stuck with the task of trying to figure out what works for our purpose given what's available on the market right now.
All this being said, out of a handful of cards I own, my 16 gig SanDisk class 2 MicroSD card is my highest performing card - more then twice as fast as even 4 out of 5 of the 8 gig SanDisk cards I have.
Here is the link to the software we are using to test the cards: Crystal Disk Mark
Post 5 in this thread has a link that takes you to the one that has become our communal benchmark thread, and has a lot of info on this topic.
I would surmise that a 32 gig SanDisk brand card would probably be pretty good given that:
-Sandisk 8 gig cards (in class 2 and 4) are the general recommendation
-SanDisk 16 gig cards consistently test to a higher performance level then the 8 gig cards.
If this is the beginning of a pattern, and the larger capacity SanDisk cards are inherently manufactered to a higher small data standard, then theoretically the 32 gig card would be better.
But, this is only a theory. A 32 gig card is more then just a couple of bucks, and I don't think we have enough benchmarks on them yet to say one way or another.
Even with the SanDisk 8 gig cards, there is a wide range of what you could end up with on small data transfer speed. It's kind of pot luck. Even the slowest ones are many orders of magnitude faster then most other manufacturers, though.
This would be a good thread for people who do have 32 gig cards of any brand to chime in on, so we could keep the discussion about the largest supported capacity card on the Nook seperate from the other threads on this topic.

I saw a thread a week or so ago regarding testing class 4 cards and which were better. I just ordered a NC the other day. Anyone know the thread?

Blue6IX said:
I've been looking into this, and here's what it boils down to:
Most MicroSD cards are set up for data transfer aimed at large files, such as video or high resolution pictures. The majority of the market these cards are manufactured for are digital camcorders, cameras, and smart phones with cameras.
They've gotten great at streaming media to and from the cards, and using them as storage mediums.
Running an operating system from the card requires a whole lot of small data transfers, which is not a specification that manufacterers pay much attention to. Most people would never notice improvement in this area of the manufacturing process, so the companies don't waste money on it.
Different manufacturers have different ideas of what their product should be capable of.
SanDisk is the brand that has consistently tested better for small data transfer then other card makers.
Running programs/operating systems from a MicroSD card is a new animal, something that hasn't really been done before now, and the tablet market is still in it's infancy.
I'm sure this issue will be addressed by the hardware makers of memory cards over the next year or so, but for now we are stuck with the task of trying to figure out what works for our purpose given what's available on the market right now.
All this being said, out of a handful of cards I own, my 16 gig SanDisk class 2 MicroSD card is my highest performing card - more then twice as fast as even 4 out of 5 of the 8 gig SanDisk cards I have.
Here is the link to the software we are using to test the cards: Crystal Disk Mark
Post 5 in this thread has a link that takes you to the one that has become our communal benchmark thread, and has a lot of info on this topic.
I would surmise that a 32 gig SanDisk brand card would probably be pretty good given that:
-Sandisk 8 gig cards (in class 2 and 4) are the general recommendation
-SanDisk 16 gig cards consistently test to a higher performance level then the 8 gig cards.
If this is the beginning of a pattern, and the larger capacity SanDisk cards are inherently manufactered to a higher small data standard, then theoretically the 32 gig card would be better.
But, this is only a theory. A 32 gig card is more then just a couple of bucks, and I don't think we have enough benchmarks on them yet to say one way or another.
Even with the SanDisk 8 gig cards, there is a wide range of what you could end up with on small data transfer speed. It's kind of pot luck. Even the slowest ones are many orders of magnitude faster then most other manufacturers, though.
This would be a good thread for people who do have 32 gig cards of any brand to chime in on, so we could keep the discussion about the largest supported capacity card on the Nook seperate from the other threads on this topic.
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Thank you for a very informative post. As I mentioned earlier I'm new to the NC and your post has helped me considerably.

androidmonkey said:
I saw a thread a week or so ago regarding testing class 4 cards and which were better. I just ordered a NC the other day. Anyone know the thread?
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You might mean my thread on comparing speed results between different readers using the benchmark software.
It's more a look at the testing software and methods of doing so then the actual cards themselves.
The more people who post benchmark results in the thread skwalas linked to back in post 5, the better of an idea we'll have of what works for us.
The amount of information we've collected so far in such a short time is astonishing - this is a great community.

harpo1 said:
What class? I'm having a hard time finding class 4.
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Sandisk 16gb, Class 4; Got it from Radio Shack a month or so ago on sale for like $25.

32 Gig
http://www.amazon.com/gp/product/B004G7D0IW
Bought this one about a month ago. Transferred my 16G class 2 from Radio Shack to the 32G then expanded the partition. I run CM7 off the SD. Works GREAT!. I run movies, apps from the card with tons of room.

Thanks for all the replies! They been very helpful!
However...
Here is the link to the software we are using to test the cards: Crystal Disk Mark
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I tried downloading that and it got flagged as malware by Microsoft Security Essentials.

Rocking a 32 Lexar Class 10 here. Just download SD Tools from the market and its running 11 MB/s write and 25 MB/s read.

lucas993 said:
Rocking a 32 Lexar Class 10 here. Just download SD Tools from the market and its running 11 MB/s write and 25 MB/s read.
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IIRC, Lexar splits their Class X cards into two more classifications, a regular and an Ultra class. Which one was yours?
Also, Radio Shack currently has 8gb Sandisk C4 cards for sale at 14.99. Perfect for playing with an SD install. With Crystal mark and a cheapie USB reader I got 2.5mb/s read, 1.5 mb/s write (both of the small block ones). I believe these are the important ones for an SD card based ROM?

I suspect the main reason there's not much info out there on 32GB cards is that people are less willing to drop $50-80 on something that may not work (IF they're trying to run a custom ROM from the card). If you're not trying to set up a custom ROM install on the SD, get any card you want--you may appreciate that higher sequential read/write in the higher class cards when you're moving multiple GB of movies or music to and from the card.
From everything I've read, the size of the card makes no difference whatsoever. The only reason people harp on the 8GB and 16GB Sandisk cards is because those specific models (both class 2 and 4 in those sizes) have been tested many times and return both reliably high small-block random writes and positive anecdotal reports for running ROMs. The size, manufacturer and class are irrelevant in and of themselves: they just let us identify specific models identified as most consistently working well.
Also, CrystalDiskMark is not malware: just do a custom install and choose not to install whatever is bundled with it (do this always for all software, I'd say). It's whatever program they use to suggest other software that triggers the false positives in security programs.