I have a nomad jukebox zen mp3 player. I bought an album from iTunes, and would like to upload it onto said mp3 player. However, it doesn't recognize AAC files. Is there anything I can do to change aac files into mp3s, or another type of file that I could put on my mp3 player?

Then you need to transcode from AAC to MP3, which will lead to a quality loss!

that's fine; is there a program that will do that for me? I"m on a PC by the way

you will first have to get rid of the drm protection of the m4p files (there is a tool called m4p2mp4 for that)
than you need a tool that can transcode from mp4 to mp3 (i think dbpoweramp can do it already)

you would also need to circumvent Apple's DRM (copy control) scheme which may be illegal.

a little more info and link here: http://www.hydrogenaudio.org/forums/index....showtopic=17220