Just picked up a WD MYclloud Home NAS. I loaded my music on the WD My cloud. When I went to play the songs from the Sonos 1 controller, I noticed that there a lot of songs that were not properly categorized by Artist and Album. It lists the tracks as unknown artist and album.It seems like the metadata is missing. My music files were moved from my iTunes folder where it is saved by Artist/Album/Song title. The folder/files on the NAS look exactly like they do in the iTunes folder.It looks like it is happening with all my iTunes files that are MPEG audio files. I am using the S1 controller. Any one experience this and have a solution? Thanks!