from the JB3 FAQ here:
http://taperssection.com/index.php/topic,16338.0.html[330] Do I need to do any regular maintenance?
It's probably a good idea to do a Format All regularly to ensure you don't run into problems like excessive fragmentation. Instructions:
1. Remove the battery or press the reset button.
2. Either while reinserting the battery or after reset ensure that the stop button is held down.
3. As soon as the 'Creative' logo appears on the screen during the boot sequence, release the stop button. Immediately press and release the play button. The unit should boot to a diagnostics mode with several recovery options.
Those are:
[a.] Clean Up (Performs a scan disk on the HDD)
[b.] Format All (*WARNING* ALL contents will be lost, including pre-installed content)
[c.] Reload OS (*WARNING* THIS IS AN ADVANCED OPTION. DO NOT choose this unless you are sure of what you are doing as you could render your player unusable. You must also have a suitable firmware file on your PC for reloading via USB)
[d.] Reboot
As best I could find, Clean Up scans the disk for errors and rebuilds the songlist index but does not perform a defrag. The Format All does just what it sounds like: formats the drive, negating the need for an actual defrag (and good thing as there doesn't appear to be a maintenance operation to do just the defrag while maintaining your data). Reload OS is probably overkill and you shouldn't need to do it unless you're having serious problems.