Yes, I use it solely for music, didn't buy it for it's video capabilities.
No software supplied with it because it doesn't need any. Just drag your MP3's to the music folder on it. It reads the tags and sorts them into artist and album. You can create playlist on the unit or on your pc, again just drag the playlist file into the playlist folder on the unit. When you plug the USB lead in the unit is shown as another hard drive. Not had any problems with it skipping when on the bike. I'm considering getting the CF card adaptor that lets you plug a camera memory card in the side of it and transfer the photos onto it's hard drive. Theres a new 500 out now so these are coming down in price, I paid £140 for mine. Which isn't bad for 20gig.