Error message: Not enough space for music DB. Please free 4MB.
I have just bought a Sandisk Sansa M250, we loaded som music on it and it lasted 2 hours, then it the message came "Not enough space for music DB please free 8 MB". I couldnt even go in to the menu. I contakted Sandisk.com and 24 hours after they came up with an answer.
If it's currently frozen, hold down the power button for 20 seconds in order to soft reset it.
Let's try to format the player (THIS WILL ERASE ALL FILES FROM THE PLAYER). Plug it into your computer, then open My Computer, right-click the drive associated with the player, and choose Format. It may give you a choice of file system, if so, choose FAT (it may only let you choose FAT32, which is fine). Now click on Start and it should format the player.
If not already done, please also update the firmware from this link:
The 20 seconds on the power button didnt work, but the formation did.
Hope this helps.
Please bear with my english