Quote:
Originally Posted by activea
I copied all my data to a TwinMOS Ultra-X 2GB 133x SD card and i noticed two things:
1) The time it takes to load the books when you insert the TwinMOS SD to the device, is now reduced.
2) No more lost Collections, etc
3) PRS-505 works faster when navigating to menus, when loading ebooks ...
Did you have same issues with your device too??
Does the problem has to do with the compatibility of the device with specific brands or has to do with cards speed (80x VS 133x VS ??x)?
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I know of four manufacturers of the actual flash memory used in SD cards: Hitachi, Panasonic, SanDisk, and Toshiba. All of the SD card manufacturers buy flash memory from one of them in an OEM deal and put it in their own packaging under their own name.
I have SD cards from Lexar Media, Patriot, PNY, and SanDisk. The fastest benchmarks are for the Lexar Media card that uses Panasonic flash. The slowest benchmark is the PNY card using Toshiba flash.
Overall benchmarks are in the same ballpark for all the cards, including the 2GB SanDisk "Ultra" card. The PNY specifically falls down on
write speeds, which are an order of magnitude
slower than the other cards. When I ran a benchmark on the PNY card in my Tapwave Zodiac 2 PDA, I thought the device had hung and was about to reset! That particular benchmark read and wrote a 1MB file to the card, and the write took a
long time. (Kingston also uses Toshiba media, and folks have reported the same results on Kingston cards.)
I'm willing to bet something like that bit you.
Most folks seem to buy cards on the basis of cheapest price, but as usual, you get what you pay for. I've basically standardized on SanDisk as a known good card.
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Dennis