Sandisk has an Answers support site for the Sandisk players.
Searching for answers on the item space, links to next page:
The first answer on not enough space for musicDB will give 2 options for deleting files, see next page:
Option 1 for normally erasing files.
Deleting selected files
Method 1: deleting files on the player itself
Method 2: deleting files when connected to a computer
when using method 2, switching USB mode from MTP to MSC
or vice versa may be needed to see the files in the folders.
Information about the problem "hidden files", see:
How to change the USB mode of the player, see:
Option 2, erasing all files on purpose or when memory is corrupted .
Formatting the device, deleting all files
This help page shows how to perform a format of the player using
disk management. The player has to be in MSC mode when performing
How to switch to MSC mode is mentioned before, see link:
Manual for the Sansa Clip in pdf format:
When more help is needed, just post a comment.