About the format used during *reconding*: it's as you say, not important. We are only talking about the format used for distribution. Also, video quality is *not* important indeed. We can overcome these problems over time. :)
Still, even if *we* (two of us) can see the link to "Ogg video" im some contents in Internet Archive, the average user will most probably watch using the page's player. However, there is no need to go to the player itself in order to see that the page seems to require non-free software to be automatically run, because I see the following list of fragments in the beginning of pages related to video content: - window.archive_setup=[] - analytics.js - jwplayer.js - play.min.js - archive.min.js ... and many others that have no indication of license, nor indication/comment on where to get corresponding source code (when applicable for minified/obfuscated code), so that the average visitor can read it and understand where he must go in order to get it. So I can't recommend Internet Archive until this issues are fixed. Besides, we have to support initiatives such as MediaGoblin and GNUnet (for which I suggested MediaGoblin to integrate with, and I also suggest people to go suggest the same to them, because this would allow easing the "load" on MediaGoblin service providers, and also distribution of mutable content with possibility of roll-backs). There are many pages in Internet Archive that I didn't look, so there might be other work to do.
