OK, I'm having the same problem as jakke2. I'm using firmware 2.0 on a NW-E005F. The filemanager can always read what is on the device but if I close it, wait a minute, safely remove the device, and then unplug it, 'NO DATABASE' just comes up on the screen. Where can I find your OMGAUDIO.zip file? Hopefully that will fix it. Cheers for all your work, Peter