Wasn't sure where to place this. In windows Vista the File properties dialog for wmv videos has an artists section, in 7 this is listed as Contributing artists. In 7 if I try to sort a folder by contributing artists only unspecified appears. If I filter by Author I am able to see the name that are labeled as contributing artist in the file properties dialog these files are in the same folder and indexing shows as complete; Vista is able to correctly sort the files. The are the same files on an external drive. I am also missing file properties on some of my mp3 files, however when I boot to vista and look at the same files, the properties are there.