I am doing cover art and information for my itunes collection to be viewed on Apple TV and wondered why I would choose MetaX over itunes. Doesn't itunes do all that stuff? Also, why does MetaX take so long to write the tags? Two minutes seems a long time for what it is doing. Quick question, does anyone know why MetaX demands that there is three times the file size of the file it's writing on my HD? and finally....can someone explain why or how MetaX reduced the size of an MP4 video file by 30MB after it had finished tagging it?!! Thanks.