4CC codes Fg31 X+bt

I was sent a disk from a friend in Europe, and have not been able to play the file. I tried AVI Preview to try and see if the index was intact and it played for a while, being limited AVI Preview wouldn’t play the whole file, so I tried IO Player, NOthing at all. Now even AVI Preview won’t open it.

I checked the four CC codes and here’s what it showed.

4CC Description Code: Fg31
4CC Used codec: X+bt

Any thought greatly appreciated, it’s a vid of my sisters wedding, that was originally a DVD but was ripped for me.