I've had my Sansa m240 for over half a year now, and until now, it's worked great. Every time I turn it on, it just says "MTP DB Mismatch Format?" and later it says "Not enough space for Music DB. Please free 8MB." After that it would say I had no files on my MP3, even though I USB connected it to my computer and all the files were still present. So I tried to clear my whole MP3 of files, and moved them into a separate folder on my computer. But even though I have no files left in the MP3, I still have the problem. Anyone have any solutions?
Insanity i just called the technical support a while ago and they said most of that is because of a file coruption go into My Computer then go into Sansa M240 then right click the little cartridge file and click on format it should work then
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This error message may largely be due to the corrupted Music Database file that the Sansa M240 creates to maintain an information pool on the music files downloaded to it.
Normally, if you are unable to completely format the player in Windows Explorer, there are still 2 other (and actually, more recommended) options that you have:
(1) Switching the M240 to MSC mode and formatting in "Disk Management". You can get to this window by right-clicking the "My Computer" icon and selecting "Manage". Make sure that you use the FAT file system to optimize the 1GB memory
(2) Switching the M240 to MTP mode and formatting the player in Windows Media Player 10 or version 11.
The mode of the M240 can be changed by accessing the menu and going to "Settings", then choosing "USB"
In general, formatting the player in "Disk Management" is more effective than formatting it in Windows Explorer.
Also, it would be a good idea to upgrade the player's firmware to the latest version via the SanDisk website:
I hope this helps. The M240 is a great player.