Many adverts aggregated on a single file, stored on a DVD.
Possible Solution approaches
OGMRIP (or any other rip programme)
Adverts were sent to us on a DVD by advertising agency back in 2007.
Working with AV is very tricky as it is very easy to corrupt either the video or the audio file. Need to experiment with a small sample and find a solution before working on more data. Best format for video is MPEG4, for audio is AAC. There is also MJPEG but files are huge. Never completely fill the space available on a DVD.
DVD Migration and Video Splitting