I don't think your problem is with PowerPoint or with your iPod. You're
probably referring to music files that you have purchased from iTunes which are
encrypted with protection to prevent distribution. PowerPoint plays MP3s and
your iPod plays MP3s. You can also store MP3s in your iTunes library. However,
anything that you purchase from iTunes arrives and is stored as an M4P.
To convert to an MP3 you will have to save the M4P music file(s) to a CD and
then "rip" them back to your hard disk as MP3s.
Microsoft PowerPoint MVP Team
Autorun Software, Templates and Tutorials