I don't know. I downloaded a bunch of videos from youtube into mp4 videos and saved it to my iTunes library, but itunes isn't recognizing it to the point where it doesn't even admit that the files exist. If I manually open them going through music -> iTunes -> iTunes Music -> artist name -> video, then the files are there, but I have to open them with quicktime. iTunes itself won't open them. Since I don't have quicktime on my iPod
that's not much help.
The messed up thing is, the songs I want are available on Australian iTunes, but since I don't have an Australian billing address, it won't let me buy them. I can't even get them on amazon. If I wanted the songs in non-youtube format, I would be forced to buy the cds from a Singaporean source at double the cost, plus shipping and wait 6 weeks for them. There are a few non-music videos off youtube I want anyway, so I figured I would just download for now and order the cds later (small artist to support so I don't want to permanently cheat), but it's proving to be a bit frustrating.