I use a Creative Muvo 1gb MP3 player when jogging etc. Advantage is that it is solid state so stands up to rigorous use a lot better than hard drive based players. It uses AAA batteries so I am never stuck with a player that doesn't work as I carry a spare battery. It just plugs into USB port and shows as a portable drive and I can use Windows Explorer to add/delete files. Also will play wma files that can be more compact than MP3 and a 1gb player can hold around 17 albums in 64bps wma format. It's now four years old and still going strong despite a lot of bouncing around.