MetaX 1.4 is available today. I added some new features that I find important for Music Video tagging. Here is the change log:

1.4 - Added album tag support
Added movie frame grabbing support
Music video searches now search Amazon.com music by album name

So, now you can bring up the frame grabber window, and scrub through the video to find the frame that you want to set as the cover art tag. I like doing this for music videos. Music videos also receive search data from Amazon.com music instead of the movie database. This will give more appropriate results. Searches are done by album name. And finally, as you can see the theme is music today, I added support for the album meta tag. Enjoy! Please give me feedback on any bugs or recommendations.