im having a similar problem. i have about 300 songs under unknown artist and its not showing up on the software "collection".its only showing up on my device. i spoke with 2 zune reps. and we tried everything, from reformatting to completely deleting everything out of my device. the only thing that they told me was that my zune might be corrupt. i wouldnt freakin mind sorting them out even if they are 300 songs, but if their not showing up in the collection then i cant organize them with their original artist. and its anoying the hell outta me!!!