- Move vts_01_0.bup to another folder for safe keeping if needed again.
- Make a copy of vts_01_0.ifo and rename the copy vts_01_0.bup.
- Attempt burning again.
If it still doesn't play, move the original vts_01_0.bup back and do the opposite -- move vts_01_0.ifo out and copy vts_01_0.bup, renaming it vts_01_0.ifo.
Hope that makes sense.