I've been researching old versions of Ubuntu lately, specifically 9.11 and 10.04, and running through a series of programs that I've begun to expect to produce interesting errors in video. 9.11 is interesting because as I've talked about before newer versions of ogv will play in Gnome-mplayer but produce some delicious faults.
More interesting though is one I've discovered involving Cavs and Vlc on 10.04. I'd recently been given an old pentium D dual core by a friend ( thanks Ryan) and decided to recap it as there were a lot of dodgy caps on it, my first time to do this and I used a donor board for the new caps , so I didn't have High hopes that it would work as my soldering skills are not great. But lo and behold I fired it up and away it went , wonderful but what to run on it? Of course in my quest for error it had to be 10.04 ( I'd recently learnt that all the old archives are still up - thanks Canonical so software wouldn't be a problem after a quick adjustment to /etc/apt/sources.list ) . Anyways, I have a list of file types to run through these days which may or may not produce error , and one of them is cavs and lo and behold Ubuntu 10.04 exhibits both the ogv error I'd found in other pre 3 kernels plus a new and more excellent error .
( This is how the video actually plays in Vlc, captured using gtk-recordmydesktop, though I did add the sound on top - the source video is a 50's govt information film found on the internet archive called 'They must be told' )