If you are new the digital world, then you may wonder what MP3 player is for you. There are many choices, so look carefully. What's even more fascinating is:

I brought my iPod back to life with a little juice and a plastic crowbar.
You’ll remember that my iPod died. At least, I thought it was dead. I was pretty sure the battery was showing a good charge when it went blank and ignored my attempts to revive it. I went ahead and ordered an iPod shuffle because I had in my head (though I’m not sure where I got this idea) that a replacement battery was about a hundred bucks. Not so. I ordered a NuPower High-Capacity replacement battery from Other World Computing. The battery claims 30% more run […]
Source: http://www.handpickedsoftware.com/my-ipod-is-reborn

Of interest, another popular story talks about how to get a free MP3 Player that may be an option for some people. Will have more on ipod battery exchange iv iv iv strong later.