Can a sansa mp3 player give a computor a virius?

From Answers WiKi:- The mp3 format does not allow you to execute code. The way a virus works is it executes code which either deletes, edits, adds, or takes files from your computer. This is next to impossible without the use of at least one exe, vbs, bat, or com file.

So if you only transferred mp3 files the virus did not come from you.