Very interesting post. Just a short (very late) note.

We are doing more or less the same thing for video at SB. We receive TV for a large number of different channels, and we have an agreement on a smaller number of different format profiles for the different channels. When we receive our TV broadcasts, we use schematron to test the received files against the profiles.

In SCAPE we want to work on policy driven validation in both PC.WP1 (Characterisation) and in PC.WP3 (QA) for audio and video this spring.

I will write a blog post with more details some time.