Related
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.
Hi,
I've just received my TyTn II and am interested in getting a memory card for it.
It takes Micro SD but what is the max size that it/WM6 will work with?
Also, what is Micro SDHC? and can I use it?
I've seen a 2GB MicroSD card for £7.55 del. but I probably want a bigger card.
I intend using it for tomtom - photos - some games and apps and of course data file storage.
TIA
Bryan
I picked up a SanDisk 8GB via Amazon for under $70 USD (minus shipping).
http://www.amazon.com/Sandisk-Micro...1?ie=UTF8&s=electronics&qid=1204123335&sr=8-1
I have a San Disk 8gig in mine and it's great.
Cheers, Paul
Thanks for the quick replies,
As you are using 8GB cards they must be MicroSDHC? AFAIK MicroSD cards that hold 4GB or greater are all MicroSDHC.
Any chance you can pop your card and see?
The 8Gb SanDisk that I ordered is MicroSDHC (a.k.a. 2.0).
The HC stands for High Capacity and it is indeed for cards above 4 GB.
The device for the memory card has to be HC capable and lucky for us, our Kaiser is
Every micro sd card also has a class (2, 4 or 6 I believe). The higher the number, the better transfer rates (and response time), but also the bigger the cost.
I currently have a 6 GB (class 4) micro SD card. I'm going to wait a while to buy a new one until cards with about 16 GB or 32 GB (or something like that) of memory come around.
I'm also running the sandisk 8gb SDHC card. Its speedy and
works flawlessly. I got it on amazon for about 80 USD
The only thing i could recommend after having a card this big
is a good card exporting program on your phone so not
limited by activesync
Thanks for the help.
The 2GB MicroSD card at £7.55 seems very good value but I'll wait for an 8GB MicroSDHC deal to come along.
Hopefully a faster variant too..
Is it possible to connect the phone to a PC and have it recognised as a large memory stick? I know some phones do and then you can just explore them like a disc drive.
I will setup activesync at home for normal installation etc. but wondered if I could access the SD card whilst in phone from the PC/USB a la memory stick whilst at work.
yes, you can access the SD card like it's a memory stick by exploring. However, the transfer rate isn't as good as a USB connection with a stick. The 8GB SanDisk comes with a USB reader so that the card can actually be used in the reader just like a stick. Fastest transfer rate I've ever gotten with my phone
I'm using an 8Gb SanDisk MicroSDHC.
Works great!
I have a 8gb and it is fine.. but if you wait until next month you can pick up a 12gb and really have some storage space.
'im using a sandisk 6GB MicroSDHC for about 50canadian$
WebAgents said:
Thanks for the help.
The 2GB MicroSD card at £7.55 seems very good value but I'll wait for an 8GB MicroSDHC deal to come along.
Click to expand...
Click to collapse
Talk about a deal i just purchased two 8gb for $70 because they were used and only came with one adapter.
I got my 8 gb sandisk sdhc card on ebay - another place to look for a great deal. Just be careful about the track record of the seller. I love the 8 gb card, but will be looking for a 16 gb card when they come out.
i saw the 16GB ones out anyone tried if it will work with the kaiser???
I run a Kingston 8GB SDHC in mine without problems (brought it over from my SDHC enabled Orbit), which I bought for £25 about 8 months ago from mobymemory. Never had any problems with it at all.
Thinking of buying this 16GB SDHC memory card.
http://www.meritline.com/kingston-16gb-sdhc20-class4-sd-card.html
http://www.buy.com/retail/product.a...m=206812522&Type=PE&Category=Comp&dcaid=15890
But I dont wanna throw away money..so..
is the TYTNII a SD (ver. 1.0, 1.1) device? (if so then it will not recognize SDHC cards (>4GB))?
Does anyone know if this works with TYTNII (pratically, not theoretically)?
Has anyone used this or the 12GB one?
Thanks
some info on it:
Compatibility with SDHC 16GB: 16GB SDHC are designed for devices that are compatible with the SDHC 2.0 specifications. The SDHC logo on the packaging is to ensure compatibility. Please check with your device manufacturer for their current/future supported SDHC devices.
SDHC works differently then standard SD cards, this new format is not backwards compatible with legacy SD format host devices.
Kingston Technology's Secure Digital High Capacity (SDHC) memory cards are fully compliant with the new SD Association specification version 2.00. They are a new performance class of SD memory cards designed to meet the storage demands of high-quality digital still and video cameras and other high-resolution image recording devices.
-Remember that standard host devices must call out support for SDHC in order to be compatible with SDHC Cards (>4GB). Look for the logo!
-SD (ver. 1.0, 1.1) devices will not recognize SDHC cards (>4GB).
Features/benefits:
Compliant: with the SD Card Association specification version 2.00
Secure: built-in write-protect switch prevents accidental data loss
Compatible: with SDHC host devices; not compatible with standard SD-enabled devices/readers
File Format: FAT 32
Simple: as easy as plug-and-play
Specifications:
Capacities: 16GB
Dimensions: 0.94" x 1.25" x 0.08" (24mm x 32mm x 2.1mm)
Speed Class Rating:
--Class 2: 2MB/sec. guaranteed minimum data transfer rate
--Class 4: 4MB/sec. guaranteed minimum data transfer rate
--Class 6: 6MB/sec. guaranteed minimum data transfer rate
Operating Temperature: -13°F to 185°F(-25°C to 85°C)
Storage Temperature: -40°F to 185°F(-40°C to 85°C)
Voltage: 3.3V
The problem is how to fit it in your Kaiser ?
Cause this is not a micro SDHC card
While I don't know about the SD version on the Kaiser, I can tell you it reads 8GB SDHC cards. So if your 1.0, 1.1 versions only recognize under 4GB then the Kaiser is obviously using a later version.
Not sure on what you are going to pay for that size card... you can get an 8GB for under $50 which might be a smarter move until the others come down in price.
dang thats the price of my tilt
btw our phone support up to 32gb
ChefChaudart said:
The problem is how to fit it in your Kaiser ?
Cause this is not a micro SDHC card
Click to expand...
Click to collapse
LOL good point, i didn't even follow the link to see that. I thought that SDHC was only micro cards...but then again I don't own any other devices that use these so i never researched them.
So, to the OP the size should work...but make sure you get a micro!
the card u posted in ur link will NOT work becase it doesnt suppot SDHC...u just simply cant put it inside ur phone...
It does Fit into the phone, what you see in the link is the exterior part of it. The smaller card is in the inside (fits underneath the one shown).
bluemamba said:
It does Fit into the phone, what you see in the link is the exterior part of it. The smaller card is in the inside (fits underneath the one shown).
Click to expand...
Click to collapse
Actually, the links provided are SD cards, not Micro SD. The picture is not a Micro SD to SD converter, it's just an SD card. Micro SD to SD converters do not show the size of the card on them
So in conclusion, no, the product(s) in the links you provided will not fit in the kaiser, and therefore will not work. However here in the UK, we can expect to see 16GB Micro SDHC on the 31st May. See here
Audio said:
Actually, the links provided are SD cards, not Micro SD. The picture is not a Micro SD to SD converter, it's just an SD card. Micro SD to SD converters do not show the size of the card on them
So in conclusion, no, the product(s) in the links you provided will not fit in the kaiser, and therefore will not work. However here in the UK, we can expect to see 16GB Micro SDHC on the 31st May. See here
Click to expand...
Click to collapse
Sorry My bad then..
Anyway now that thats sorrted out, my question still stands
Memory limit
One of HTC tech support guys basically told me that if the microSDHC card says SDHC that the Kaiser (or the Tilt he was referring to seeing as I was talking to him about my phone) will support it...and I believe he mentioned up to at least 128gb memory capacity or something. One other poster in this thread mentioned 32gb...
Now for reality, at the time of my purchase of the Tilt Nov 2008, Sandisk was the first to make 8gb microSDHC (okay others announced it too), and the time from their announcement of 8gb being put on their website at $139.99 in Nov 2007 or so.....to the availability on amazon in roughly January or Feb 2008 at 139.99....to the current amazon price of roughly in the $50 range by March/April 2008.....to the realization that very few other memory manufacturers have released 8gb microSDHC cards.......makes one think that by the time any amazing company makes anything substantially bigger than 8gb, AND releases it to market at a price I'm willing to pay for.......By that time...I and probably many of us, will have bought a newer phone with proper drivers...that the limit of memory size of microSDHC for the kaiser will be a memory.
In others words, 8gb microSDHC is the largest you will find today (most likely), and the phone will handle much more than that in its product lifetime. Buy with confidence that your kaiser in April 2008 can handle any microSDHC product available in April 2008.
Hope this helped.
thanks nicely put
come on dude you put up a link for an sdhc memory card you need a MICRO SDHC MEMORY CARD. Also I thought all th Tytn II could use the high capicity cards...are you sure you don't have a TYtn-one.
kkkkevinkim said:
come on dude you put up a link for an sdhc memory card you need a MICRO SDHC MEMORY CARD. Also I thought all th Tytn II could use the high capicity cards...are you sure you don't have a TYtn-one.
Click to expand...
Click to collapse
This is true, by this thread is 6 months old also . Have a look at the date!
I'm buying the 8 GB MicroSDHC tomorrow. My 2 GB is already completely full!!
The SanDisk 16GB microSDHC works just fine in the Tytn II -- I've been using one for about a week now. I don't notice any speed difference between it and my old class 4 8GB card.
3waygeek said:
The SanDisk 16GB microSDHC works just fine in the Tytn II -- I've been using one for about a week now. I don't notice any speed difference between it and my old class 4 8GB card.
Click to expand...
Click to collapse
That sounds awesome!!! I haven't seen the 16gb ones yet. How much do they go for?
I live near a Microcenter
so the 8G Microcenter version went on sale for 34 Bucks..thats right! Now the SANDISK 8G is a little bit more expensive but they are the same class SDs. I have the Microcenter version running right now in my Tilt with only 2Gs left...I'll probably try and get the SANDISK 16G but I might even wait to see if Microcenter comes out with their own 16G which generally is cheaper than Sandisks.
MACkjam said:
That sounds awesome!!! I haven't seen the 16gb ones yet. How much do they go for?
Click to expand...
Click to collapse
I've seen them in the range of US $75-100. I paid $98 for mine -- they were the only US supplier I could find that had them in stock.
Hello All,
According to the Verizon tech specs on the Incredible there is a limit of 32GB for the SD card.
Expansion Slot microSD™ memory card (SD 2.0 compatible)
Up to 32 GB card support. No pre-installed card.
Can this be increased to above 32GB?
What’s the "best or fastest" SD card that can be recommended and is not over priced?
Thanks
The micro SDHC spec caps out at 32GB, therefore you're never going to see a card offered with the micro SDHC name that is larger.
The "new" spec is SDXC. AFAIK micro SDXC has not been announced, but it would most likely be the same formfactor as micro SDHC, and theoretically supports up to 2TB. Of course, it will take awhile for the technology to catch up with the specs.
Thanks for the info. Looks like I then am going to get a 32gb card and will be looking foward to the 2TB.
Sent from my Droid Incredible.
2TB?!
who the hell needs that much memory for their phone?
and can you imagine how much they are going to cost? jesus
Well currently i have a 1TB Movies HDD in my PC with ~800GB of movies in it... with a 2TB i can have all that 2x
Is there something like "too much memory"? Not in my book...
Sent from my ADR6300 using XDA App
es0tericcha0s said:
2TB?!
who the hell needs that much memory for their phone?
and can you imagine how much they are going to cost? jesus
Click to expand...
Click to collapse
The first hard drive I ever bought cost almost a grand... for 10 mb. We never thought we'd need more.
My concern would be transfer rate. even a class 10 being a 10MB transfer rate doesn't sound too appealing for moving gigs of data at a time...you'd be sitting there for a day waiting for all the data to transfer....
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.
Click to expand...
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.