The following is what I just posted to Sandisk support as a support request. Anyone here have any advice? I’ve tried reformatting the card with the SD Association tool with no luck.
I bought an 8GB Sansa Clip+, and also a 16GB Samsung MicroSD card slot. If I plug the card in and then connect the Clip+ to the computer, the computer tells me the USD drive is unformatted. I took the card out of the Clip+ and plugged it into a card reader, where it works fine. So, I copied some music onto the card and put the card into the Clip+. The Clip+ could then see the music. However, when I plugged the Clip+ back into the computer the USD drive still shows as unformatted. So, I cannot copy music onto the Clip+ the easy way. Also, if I connect to the computer and then unplug, typically the SD card is no longer readable in the Clip+. If I eject the card and re-insert it then the card is readable again. I am on the latest firmware version, 01.02.16P