caligulathegod said:The actual authoring is the same (Boon23 helped me out here). The feature, however on the dual layer is less compressed than the single layer (two and a half hour film plus all the DVDRom stuff was pretty compressed). Other than the PAL to NTSC resizing, it is the same bitrate as the original PAL. Also, the dual layer version was actually slowed down from 25fps to 23.976 so the audio doesn't sound sped up. The single layer version was converted using the method that keeps the original sound. I then pitch corrected the individual commentaries that were actually already at the correct speed but now slowed down. I also denoised and depopped the soundtrack manually.

I think the issue is clarified (slightly) here. JediTray was sort of right that proper NTSC authoring was not done. (Sorry for my earlier post, JediTray!) I have never heard of "the other method" that keeps the audio the same. I have only performed proper PAL-to-NTSC conversions that slow down and re-encode the audio. I cannot see why anyone would do this any other way, as the other way is not a proper PAL conversion, but there you go.

If JediTray really did obtain his copy from fanedit.info, it seems to be that the single layer one caligulathegod mentioned was uploaded there. The "3 RS NTSC" entry there points to a link called jambedavdar_returningtojedi_NTSC_SL_DVD.rar, and I cannot see a dual-layer entry there.