In many multi-angled DVDs, you may not wish to keep more than one angle, as they take up so much space (each angle represents the same amount of video – in the following diagram, each of the 5 angles take up over 150Mb of space).
To delete unwanted angles, click Del Angles and select the angles you wish to delete – be sure to keep at least one angle! If you only leave one angle, the interleave information will be removed and the title will end up the same as a normal title. To actually reclaim the space, process the VTS with VobBlanker (not FixVTS). There is currently no easy way to reclaim the space if you have kept several angles, but you can compress the deleted angles to the maximum by using a still image in DVD Shrink.
If you make an error, simply cancel out of the PGC Editor and start again.