Compact Flash Cards: Any Difference Between Them?

Anyone ever use Adata CF cards? They have a "Speedy" 64GB 533X CF card that retails for a little under $200, with 32GB 533X and 16GB 533X cards going for about $100 and $55 repsectively.

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I'd rather have a number of smaller cards than a single 64GB card. Also, I'd prefer to stick to a brand I've trusted for several years (SanDisk). To each their own.

There certainly is a difference. Tests...

http://www.robgalbrait​h.com/bins/multi_page.​asp?cid=6007

You can't be guarranteed the claimed performance with the unknown cards, also as another poster has mentioned, getting a large card is a bit of risk. If it fails or get corrupted your going to loose a lot of data or have an interesting time getting it back.
I'd say go for the smaller sizes if your buying cheap.

adata = low quality..
64gb = bad idea..
adata 64gb = no way

I did a quick speed test with some of my compact flash cards, to show that the performance claims of some CF cards are misleading.

These graphs show the relative performance of the cards, not the absolute performance, as the usb 2.0 interface slows things down a bit.

1) Sandisk Ducati 8gb - claimed write speed of 45mbs

There can also be incompatibilities with the internal controllers with certain pieces of equipment. I've seen certain brands working with equipment and other brands, although allegedly identical, not work. I agree that it is a good idea to stick with the known brands.

J.

Racer997 wrote in post #10052637
The Adata CF cards are made in Taiwan, and most other CF cards are also made in Taiwan, thus my assumption that no-name, generic CF card companies make media storage for name-brand companies.

Or, the no-name companies, like Adata, buy up Sandisk and Lexar rejects, stick on a fake '10000000x' speed claim and disappear when you try to get a refund for your dead card.

They may be assembled in Taiwan, but that's not the whole gig. The big issue is the controller in the CF card. Sandisk invented the standard and they purposely made it wide enough to drive a truck through as well as leaving enough ambiguity in it for them to exploit. If the controller has compatibility issues, it can be a problem.

Too, it matters what grade of memory they use in the construction of the card. If it is not as fully tested or from a less reputable supplier, then you can also have issues. For example, some of the third party guys buy memory on the broker market. That means it can be excess inventory from places like companies that went bankrupt, over stocked parts that have been sitting on a shelf in improper storage conditions for a long time, it can be date codes of parts that were an issue for an OEM but never able to be verified (or they didn't try) by the supplier etc... If that winds up in your card, you can *easily* have issues.

That said, memory that comes from the big names is with controllers of known compatibility, with fully memory that comes straight from the main memory suppliers (Samsung, Toshiba, Micron/Intel) and is more likely to work correctly.

There is also a rampant counterfeit market where devices are marked as being from reputable suppliers but, in fact, are not. There are a host of big issues with using these cards.

Best and safest to stick with known reputable brands.


J.

Sandisk only for me. My only experience with cards that failed were:
1 transcend, the only one I ever bought.
1 kodak, the only one I ever bought.
I have owned many Sandisk cards over the years with 0 failures. No brainer for me.

Anyone use Lexar CF Memory Cards?

They are fine. Lexar is owned by Micron which makes a lot of the FLASH memory chips.

J.

My current two main cards are 16GB SanDisk Extreme 60MB/s, which are as fast as a whistle

mrjoker wrote in post #10849553
Anyone use Lexar CF Memory Cards?

I have a Lexar 16Gb 600x CF card and haven't had any problems, yet (knock on wood).

Amazon.com are selling a Voigon Flash Card. Never heard of them. Anyone know this make?