VIDEO_TS doesn't play

I had my first attempt at playing a backed up DVD through Media Player today but it didn’t work.


I copied the full VIDEO_TS and AUDIO_TS folders over and put them inside a parent directory.  When I select the name of the film on Media Player, it instantly recognises that it’s a film and plays it - brilliant - only Media Player can only decode the audio, and the video is just a green square for the whole film. 


Am I doing something wrong?


If I copy over individual .VOBS, they don’t play correctly either, they’re all garbled.