Conclusion: There is no support for secure music files from sources like iTunes or Napster, and the player does not support Ogg Vorbis. But these are all features that the majority of users will not use and those of us who do look for those features rarely use them anyways.
Pros: Excellent sound quality, great software package, as refined as you can get
Cons: No support for iTunes, Napster, Ogg Vorbis. Accessories cost extra