Comprehensive Report of Relevant Container and Codec Support in Windows 7 and Media Center

MP4 does support metadata but Media Player and Media Center don’t recognize it. Tagging an MP4 based TV episode in the Zune software generates Windows Media style “WM/TagName” tags as a sub-tag of a custom MP4 “Xtra” tag, however, despite the use of Windows Media tags, TV episodes and movies do not show up in the Media Center Recorded TV area or Movie Library.