Well, I pulled my head out of my @$$ and fixed the poor excuse for QuickTime tagging that I had in the previous version of MetaX. MetaX 2.3.4.8 is now available with this new capability. Most of the tags available for mp4 files are also available for QuickTime .mov files. Please provide any feedback that you may have on this new feature. If you tagged any mov files with the previous version, remember that you can remove the tracks added by MetaX using QuickTime. Get it HERE. Enjoy!