not only does it allow metadata, but the usage of this metadata can be quite important in identification. Why else would
video converter software give you the option to enter this info? It is because this is how you get found. Did you end up completing the thesis? I would love to take a look. I did a research project on the difference in metadata between PC and Mac operating systems. I used a variety of vmware options to duel boot the operating systems on the same machine and ran some tests. It would be cool to see if our studies match up.