I managed to get zenphoto to work with video files. I’m not a php programmer but it wasn’t hard to do at all, plus I only had to change code within two files. I only have it doing .mov files because that’s the format that my camera records.
If you look at the code you will see how easy it is to change and add different formats.
You can download it here.
http://www.zachbarrett.com/development/zenphotoVideoHack.zip
peace.