I'm using Shrink, Vobblanker, and Pgcedit [in that order] to redo a dvd9 to dvd5. Main problem is after stripping audio tracks #1, 3 and 4 from 7 possible audio tracks. There's two audio menus - one where you can select each of the 7 (this works fine after I delete buttons for #1, 3 & 4). The other menu allows you to select just 3 of the tracks - either turn them ON or OFF. OFF means the dvd defaults to track #1. With #1 stripped, nothing happens. I'm not sure how to change the default to track #2. A lesser problem (but bigger headache) is trying to shift all the audio tracks up so a dvd player displays them as track # 1, 2, 3, 4 (instead of displaying #2, 5, 6, 7). I don't understand all the mov, gprm, sprm lines in Pgcedit.