I've had one of these great MP3 players since they came out in 1994:
http://the-gadgeteer.com/2004/06/28/...player_review/
It was laid aside after 14 years being my truck music machine. It was upgraded to a 2.5" 120GB Toshiba IDE laptop drive years ago. Its Li-Ion 2AH cell died, finally, so I simply laid it aside. This week, I resurrected it with a new 2.6AH 4/3A Li-Ion cell using the old battery charge controller that was easy to move to the new cell.

Hmm...this thing acts like a USB2 hard drive when you plug it into a PC. It's SELF-POWERED by its BATTERY! Wonder what happens if I plug it into one of my N800s via the swivel USB adapter from Electronics Online? It draws no power from the port, being self powered.

VOILA! The 120GB N800 external hard drive with built-in MP3 player, audio recorder and FM radio! Works like a champ! Playing MP3/OGG/WMA/WAV music no longer eats N800 CPU cycles! Everything runs faster! Just let the external USB drive play the music....for days!

I've been cycling the new cell to bring up its capacity. It will play MP3s, driving two speakers directly, for over 32 hours on a charge. No telling how long it'll run playing DivX movies.

Storage is no longer an issue...(c;] Just thought you'd like to know it works great. DMC is toast. These are still available on Ebay. The nice leather case also protects it and hangs it on your belt. Too bad it doesn't have Bluetooth PAN.