I can't delete the audio from the DVD I copied

[robhigham]

I am using MF6 for a project. I have imported a home movie from a DVD which had music on it that I want to delete so that I can add different music. I can not work out how to delete this pre-recorded music.

On the DVD I am copying from the AUDIO_TS folder is empty. The audio seems to be integrated with the video on the VIDEO_TS file.
Please help!