I modified an F10 Gigabeat with a similar CF to 50pin IDE adapter. I soldered a wire jumper on the back of the board in place of the case jumper on the pins and also cut the pins down because the back of the player was hard to close. I used a generic OEM 32GB 150X flash card found on ebay. (Blue label and reported to contain Samsung memory parts. Was $66 when I bought it.) So far, it seems to work OK, but it is taking longer to shut down than before with the HD. Nice to have a light thin player with 30GB storage!