For the 'Video Game trailer' and the 3 TV spots, I had the original quickTime .mov files from the net (same source that you used for the DVD), so I simply made an .mpeg (PAL) from the .mov and replaced the videos on your DVD with VobBlanker. Menus and everything else remains untouched.

For the easter egg: of course I didn't have your original source, so I had to use what was available on your DVD and I just transcoded from NTSC to PAL with Vegas 6. As far as I can tell, video-quality was not affected.