I´m using the Version 1.0.22.
I Use different Folders for each Media Type (Audio,Video, Picture).
But if i look where my (mp4) Videos are. If find them in the Music Group. I tried it with an short Test Avi and put it in the same Directory where the mp4 videos are.
This File is correctly categorized in the Video Group.
I tried it on 3 devices (2 Windows 7 Media Player and one Nokia N78 which has also UPNP-AV) On all the devices the mp4 Files are shown in the Music Group.