Database Develop

Sticky for SD Cards

Could we get a sticky thread where people can post what Micro SDCard they are using and how well it works? It would seem really useful to see which cards work well with the Nook Color and which ones to avoid.
Posts should have: Manufacturer, Capacity, Class, and Model. In addition, list what you have run from it and how it performed.
I'll start off. I currently am using a Toshiba 8GB Class 4 Micro SDHC Card, Model C08G. NookieFroyo will run from it but it is slow and makes for a very laggy experience.

I ran Froyo on a regular 2GB microSD, not sdhc, and it was smooth. I don't know why ppl think having higher class microSD will make Froyo run smoother. If you have lag, turn the screen off and on again might fix it. Another thing is that if you have a lot of startup apps on boot will slow your NC.
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succulent said:
I ran Froyo on a regular 2GB microSD, not sdhc, and it was smooth. I don't know why ppl think having higher class microSD will make Froyo run smoother. If you have lag, turn the screen off and on again might fix it. Another thing is that if you have a lot of startup apps on boot will slow your NC.
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Could you post what card you used, preferably the specific model? That card could be anything, from class 2 to class 6.
SDHC doesn't mean it's high speed, SDHC means "Secure Digital High Capacity". Standard SDCards are up to 2GB (some may be listed at 4GB, but alot of readers have problems with those as the block size is larger then 512 bytes). Anything larger is classified at SDHC
Class is the speed that the card should Read/Write at. A class 2 card should write at a minimum of 2MB's per second (read speeds are typically higher), a class 10 card should write at a minimum of 10MB's per second.
A higher class card should perform better then a lower class. However not all cards are the same, and card readers vary, which is why I'd like to see this a sticky.

I agree!
I am a newbie/nookie and am wanting to know what micro sd card to purchase to root my nook color. i will be so grateful if anyone posts here about the one they used to effectively root their nook color...
thanks

Well I can't post links yet
Item # N82E16820208453 on Newegg
The transcend seems to be a favorite for it's speed.

[Q] Which SD card is best fast read or fast write?

I just got a Nook Color and rooted it with Autonooter 3.0
Everything works great. I'm thinking of trying Froyo or Honeycomb on a SD card.
I want to ask which SD card would work best.
Reading through the forums, I have found there are some conflicting information.
On the one hand people recommend Class 6 or higher cards.
On the other hand a number of posters have reported using a class 2 Sandisk card and got good performance.
Since the classification of SD cards only refers to the writing speed, a lower class card may have higher reading speeds than a higher class card. I 'm wondering which is most important for running Froyo/HC on Nook Color, a higher reading speed or a higher writing speed?
For reference here are some benchmarks I found on Amazon.
It appears this Sandisk class 2 card have reading speeds of up to 18MB/s, and writing speeds of up to 6MB/s
[SanDisk 16 GB microSDHC Flash Memory Card SDSDQ-016G (Bulk Packaging)]
This class 6 Transcend card have reading speeds of up to 15MB/s, and writing speeds of up to 11 MB/s.
[Transcend 8 GB microSDHC Class 6 Flash Memory Card TS8GUSDHC6E]

Here's more info for you:
http://forum.xda-developers.com/newreply.php?do=newreply&noquote=1&p=12000938

I have an 8 gig class 6 transcend in my fascinate, and a 16 gig class 6 transcend in my NC running CM7. I have a season of an anime I'm watching with Rockplayer on my morning metro ride. Both transcend cards have been great. I have two 16gb Sandisk class 2 cards. One is my "fast one" that's at least as fast as the transcend cards. One is my "slow one" that is unbearably slow for things like transferring a season of anime for watching later with rockplayer. I also have a 16gb samsung class 2 that has performance that mirrors the "slow" sandisk class 2. If I had to get another card right now, I'd probably get another transcend class 6. I've also heard great things about patriot brand, but I can neither confirm or deny those things from personal experience.

Which microSD card is the MOST STABLE and FASTEST for using HoneyComb in SD card?

So I finally got HoneyComb working on my Nook Color (NC), residing in the microSD card using a Kingston 8GB Class 4. However, this card seems to be one of the slowest and using the HC in NC is almost unusable.
Example:
- Screen rotation takes 3-5 seconds
- Opening new app, depending on which app, can take 1-5 seconds
- Browsing certain website can make the screen unresponsive
- etc..etc..
I know that the HC version available in this website is probably still in "preview" or beta stage and some slowdown is expected, but I am not expecting it to be THIS bad. So I think the culprit is the microSD card itself.
However, I have tried many different MicroSD card and none works. I.e. it gives the "decrypt storage" error when booting up the NC. The cards I have tried are:
- Patriot 16GB Class 10
- A-Data 16GB Class 10
- Kingston 8GB Class 6
The ONLY one that works so far is Sandisk. Unfortunately, from SanDisk website, I do NOT SEE ANY card higher than Class 4.
Thus, can you recommend which is the MOST STABLE and FASTEST card? I.e. the ones that did NOT give slowdown per the examples I have given above.

i'm using sandisk 4 GB class 4 HC
nookie froyo, runs fantastic.
Class 10 cards apparently dont do too well. lots of people have had issues with those. class 6 should be OK, class 2 and 4 workk very nice.

Do you have recommendation for a good Class 6 MicroSD card? SanDisk don't sell anything higher than Class 4. I tried Kingston Class 6 and my Nook Color just spit on it...

lanwarrior said:
Do you have recommendation for a good Class 6 MicroSD card? SanDisk don't sell anything higher than Class 4. I tried Kingston Class 6 and my Nook Color just spit on it...
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I am currently running trancend 8gb class 6. Havent had any issues with froyo, HC or Cm7 booting or running.

I'm using a A-Data Class 6 16Gb card with no trouble. I do have 2 Kingston Class 4 32Gb cards and they have the issue with the decrypt garbage when you try to boot up HC from the sdcard. I've also got a Class 10 32Gb Wintec card which I have not had time to test out yet as I just got it the other day.

After a failed Kingston 16gb class 10, I got a SanDisk 8gb Class 4 and it's speedy enough. I notice very minimal slow down on some menus but I don't know if that's just the OS itself (being a preview after all)

danootz said:
After a failed Kingston 16gb class 10, I got a SanDisk 8gb Class 4 and it's speedy enough. I notice very minimal slow down on some menus but I don't know if that's just the OS itself (being a preview after all)
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That's the exact same card I have, and you did NOT experiences any of the slowness I posted in my 1st thread?

How drastic is the difference between Class 2 and Class 4?
I know that it says that it processes twice as fast, but is it noticeable? Can somebody give an example of when you can actually tell the difference? Playing music, watching movies, booting from microsd?

I have a Sansdisk class 2 8gb card that performs just as well as my class 10 Patriot 8gb (which has booted both HC and currently used as storage for my eMMC CM7 install.)
Sansdisk severely underrates their SD's and many other manufacturers overrate theirs. It is not a perfect rating system.
I would recommend going w/ sansdisk in whatever size you can afford. Class 2/4 will be plenty fast.

Before I switched back to Froyo I was running off the SanDisk 8Gb card from BestBuy - $20 - which I found very responsive. I think it is Class 4, but I could see any label on the card itself or the package.
The SD card speed was not the reason I switched back, it was the lack of other features in HC preview. I can't wait for an AOSP release

8GB Cards
I currently have 2 8GB microsds that I switch between:
-Transcend 8GB Class 6 running Honeycomb from Amazon. Tested it with h2wtest and got 16MB/s write and 14MB/s read. (Not sure if that is a typo on the tool or not and it's supposed to be bits instead of bytes, but that's what it says).
-Sandisk 8GB Class 2 running Nookie Froyo. Tested at 14MB/s write and 18MB/s read.
Both cards run their respective ROMs well, so it seems to jibe with what chisleu said about Sandisk underrating their cards. I could also be limited by the USB adapter I was using, but I had another adapter that was limiting it to 4MB/s both ways.

[Q] Micro SD/SDHC card compatibility for the B&N Nook

Hi everyone:
I have been running 6.8 from my Sandisk 2GB unrated card. Although unrated, the card runs relatively fast with the Nook as measured to my Samsung Captivate or Apple iTouch (2nd Gen).
First Card: I backed up the image from my 2GB to a 8GB A-Data Class 6 card. Now this is where the problem starts. The Nookie boots up but down is acting slow and sluggish. To the point it is unuseable with lot's of FCs. I tried buring a brand new image and it is the same. I also tried the card as a data drive max'ing it out to 8GB and also using it to record video in my digicam, no problems.
Second Card: I then bought a Patriot 8GB class 10 card and copied the image onto it. Even worse. It won't even boot or get stuck in the boot process on the "Customted Froyo" screen. Try other images, and the same things occur. The card also works fine as a data card.
Third Card: Third time's the charm. I got this card from Costco. 8GB, class 4. Copied the image from the 2GB to the Sandisk 8GB, expanded the partition like the others. Worked like a charm and runs even smoother.
My question here is:
1) Is the Nook picky about micro SD cards? Seems like the faster cards are having compatibility issues.
2) For people complaining about performance issues running off of the micro SD card. Could it be caused by compatibilty issues I've experienced?
FYI, I've been running "Customized Nookie Froyo" from my micro SD card for about two weeks now with no problems. This will be my daily driver. I get the best of both worlds, Froyo and the B&N image.
Something to think about

Evidently the NC is picky about cards IF you are going to run from them - which is somewhat more intensive than is intended for an ereader additional storage device.
There are existing threads on the subject, just search TITLES for "card" in this Forum only.
Summary - The Transcend 8gb Class 6 seems to be the favorite. Some Class 10 cards don't work correctly in Nook. A-Data makes great Desktop RAM and crap SD cards. Sandisk is a safe choice when on sale, their Class rating is conservative.

Patriot 8GB class 10
I have the same card and works great. Strange. I don't know why you are having so much problem.
Did you try a new IMg? .3?

i tried the following
cheezer38 said:
Patriot 8GB class 10
[/B][/B]
I have the same card and works great. Strange. I don't know why you are having so much problem.
Did you try a new IMg? .3?
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I tried .3, 6.8, 6.7, and HC all with boot or performance problems. I have two Sandisk8gb cards now and able to run all images with no problem. Typing in HC right now.

ax135 said:
I tried .3, 6.8, 6.7, and HC all with boot or performance problems. I have two Sandisk8gb cards now and able to run all images with no problem. Typing in HC right now.
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Bad batch? I tried hc .1 .2 .3 no problem. I guess I am lucky.

I have class 4,6, & 10 cards in 8Gb, 16Gb, and even 32 Gb. Mix and match of brands from SanDisk, A-data, Wintec..etc. Only issue I've run into is using any of my 32Gb cards, they just plain do not work right. Whether I use them for just storage or even a ROM running from them they are nothing but trouble. One thing I have noticed tho is DO NOT format the card using Windows before burning an image. You are better off using a3rd party app to format the card, it seems to work much better. Or format them with Linux if you have access to it.
BTW as for the 32Gb cards they don't work well with much of anything. And from reports I've seen on the web it seems to be a known issue where all the mfgs say they can use 32Gb cards but they do not have the software bugs worked out seeing as most people don't own or use them seeing as they are a bit pricey still. At least for a decent one they are

Hey quick question will2live what is the class rating and size on the Wintec card you're using?

I have a kingmax class 10 16 gb card....HC and nookie froyo refuse to boot......well nookie does, but in the next boot, hangs up...
only cm7 runs perfect

Best uSD card to run CM7

I just put one of the CM nightly builds (build38) on a uSD card (sandisk 16gb class 2) and there is a major lag to even enjoy the device. I have been reading about that sometimes class numbers on the cards don't mean too much.
Which card would you recommend to run CM from (Brand/class/where to buy) from your experience?

any class 6 card should be plenty enough (as long as it has enough room for the ROM and stuff) even class 4 should work much better (but still some lag i beleive, idk ive never tried it)
newegg is a pretty good place to shop for them. Heres one such card - newegg.com/Product/Product.aspx?Item=N82E16820211341&cm_re=8gb_micro_sd_card-_-20-211-341-_-Product

There is a long thread about this on here and the class 6 Transcend 8GB card got the most mentions for good perfomance. The probability for issues to arise increases when using cards over 8GB.
I have a class 2 Sandisk 8GB and class 6 Transcend 8GB card. They both work well.

I have been buying the Wintec cards from newegg for a couple months and run them in both my captivate and my nook they work awesome. Class 10 and fast. http://www.newegg.com/Product/Product.aspx?Item=N82E16820161411

Patriot Signature 8 GB Class 10 MicroSDHC
Did anybody have any experience with this card?
http://www.amazon.com/Patriot-Signa...I8MS/ref=sr_1_2?ie=UTF8&qid=1302629334&sr=8-2

rahlquist said:
I have been buying the Wintec cards from newegg for a couple months and run them in both my captivate and my nook they work awesome. Class 10 and fast. http://www.newegg.com/Product/Product.aspx?Item=N82E16820161411
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Are you running a rom (e.g CM7) off the card? Did you ever run a speed test?

onurd said:
Are you running a rom (e.g CM7) off the card? Did you ever run a speed test?
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Not at this time. What speed test would you like if I loaded one up on the card and booted from it?

onurd said:
Did anybody have any experience with this card?
http://www.amazon.com/Patriot-Signa...I8MS/ref=sr_1_2?ie=UTF8&qid=1302629334&sr=8-2
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I used that card for HC v4 and it was fine.

I've got 4 uSD card: one Dane-Elec 2G no class, one Kingston 2G no-class, one Transend 4GB class 6 and one PNY 8GB class 4. All run CM7 very well, maybe I didn't pay attention but didn't notice much different in performance. In benchmark, the write speed is about 5-7 MB/s.
The higher capactity 16GB card seems to have more problems, other than that every card will do.

You should check into the random read/write performance of small files on these cards. sometimes the class 6 or 10 aren't all they are cracked up to be. Fast transfers of large file yes, but general performance can suck.
sandisk class 2 or 4 cards can have excellent perf. I have a class 10 that is outperformed by class 2/4 and 6 cards.
if you are having problems with crashing, etc. try a basic sandisk and see if perf. is better.
there is a thread about it but i can never find it.