PPC to Zune Box - supported file formats WAV, MP3 (with external encoder), WMA (export only), AU, RAW and SND. A good book marking system is in use. You can bookmark a selected portion or view and reuse the same bookmark as needed. You can name the bookmarks with remarks and can save and recall the bookmarks. Supported file formats WAV, MP3 (with external encoder), WMA (export only), AU, RAW and SND.Transform operations: Reverse, invert, move-up/down, move-forward/backward, inter-change channels, channel mix etc.Special Effects: Equalizer, Band Pass/Stop Filter, Noise Reduction, Echo, Reverb, Modulate, Stretch/Shrink, Change Speed.