Yes, I admit to formatting my MP3 too.

My problems start following the Drag & Drop method of transferring music files i.e. "windows" open and moving files directly from `My Documents` to the Removable Hard-drive. The MP3 said `Starting......` and never worked again.

The ebay seller fixed it (for a nominal fee) and have since only used Windows Media Player 10 (WMP 10) to transfer files with no problems developing again.
N.B. Ebay seller knows how to fix firmware problems but will not publish.
With reference to WMP 10, just add `Library` music files to `Sync` list and press Start Sync. Files are automatically converted to suit your Removable Hard-drive.
NEVER FORMAT just manage your file with WMP 10, easy!!!!