Quote:
Originally Posted by khnam
The 1GB SD card I get along with Cybook is very slow, I copied 2MB files to it but it took more than 2 minutes. Anyone get this problems or it's only me? I bought this from NAEB. The cover says Elite Pro 1GB. Thanks.
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All SD cards are not created equal. I have a variety, from Lexar Media, PNY, Patriot, and SanDisk, used in my Palm OS PDA.
There are about four manufacturers of the actual flash memory used in SD cards: Hitachi, Panasonic, SanDisk, and Toshiba. Other SD card vendors buy media from one of them on an OEM basis, and put it in their own packaging with their own label.
I did some speed tests on my cards with a couple of Palm OS utilities. The cards were all in the same general range with one exception: the PNY card had Write speeds an order of magnitude slower than the rest. Read, random access, and file create/delete tests were all fine, but it took long enough to write to the card that I thought the device had hung in one test and was about to reset it. (The test wrote a 1MB file to the card, and read it back, and timed how long each operation took.)
Since the other tests were in line with the other cards, it wasn't a deal breaker, as the data on that card would be read by the device but not written to, and files would actually be placed on the card with a USB reader, transferred from my PC. The card info utility on my device said the card had Toshiba media. A correspondent on another forum with a similar device reported the same results from a Kingston Technology SD card, which also used Toshiba media.
I don't know what's different about Toshiba's flash memory that would cause the slow write speeds, but for my purposes it's not a huge problem. As mentioned, the card will be read from, not written to. I wouldn't want to use it in a digital camera, but it will serve in the PDA.
I don't know if the Cybook provide a utility to determine whose media a card uses, but I'd bet Toshiba in this case.
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Dennis