I just bought a class 4, 16G SD card to use with my HM-601. I use the HM-601 to transfer files from the computer to the card. Seeing how slow it is, I just bought a SD card reader on ebay for about 5 bucks. However, my main hickup with the card is that when I upload them, the player reads them just fine, but whenever I turn it off it doesn't recognise the files on the SD card after that. To make the player read the files again I have to take out to SD card, then put it back in. Unfortunately, when I turn the player off again the same problem appears.
Anyone had the same problem and found an answer?