Which MP3's Run On AA or AAA Batteries?

I travel a lot and don't always have access to a computer or outlet for charging. Does anyone know of a MP3 that runs off regular batteries????????????

The older models of Creative Muvo mp3 players run off of AAA batteries. You can probably find them on eBay or other secondhand goods dealers. The two current models have an internal rechargeable battery and wouldn't be what you're looking for.

There are also devices that will let you charge an iPod off of an AA battery. They usually cost about $25.