Why most PAL DVD's are interlaced?

If you are talking about movies then they are not usually interlaced, as they are typically shot on film. tv series are more likely to be shot on video, which is interlaced. However in my experience it is very common for PAL movie DVDs to be flagged as interlaced even though they are actually progressive. Are you relying on your eyes (combing) or flags in making this assessment?

Oh! I didnt know about that flags in PAL DVDs. Yeah, I was talking about them (I dont have access to ntsc dvd's). So whats the diference in manufacturing pal dvd with the interlace flag and progressive? Apart from speeding up the film from 24 to 25fps is there any other way to create a PAL dvd from film?

Thank you, Matthew. ^_^

And the third way is to use an NTSC master for the PAL DVD and blend the hell out of it.

blending is bad ;) the progressive flag is pretty much only used for pulldown in NTSC, in the PAL world when playing on a normal tv (which is the primary setup for DVD) the progressive flag gets ignored and the dvdplayer and the tv happily show you you the movie as if it was interlaced (ie, field followed by field followed by field, etc etc) and noone notices that theres a 50% lack of motion compared with a real interlaced file cause it IS about 4% smoother than it was in the cinema at 24fps Enf...

Diggin' up this old thread to get some information. I've got a PAL DVD that I'm trying to convert to NTSC. This is my first experience with PAL (25fps) DVD so I'm in the learning mode. It's a film source so I figured it's 24fps source and was thinking if I use DG's pulldown and then some ifo tweaks I should be able to get it to playback fine. Process was demux VOB (vobedit), pulldown fix (DGpulldown) and then recreate DVD VOBs (ifoedit), fix ifo's for NTSC (ifoedit). And everything was working until I tried to do a shrink after everything else. DVDShrink, Rejig and other appear to choke at this point. I started over demux VOB (vob edit) and recreate DVD set (ifo edit) then tried to shrink that and things worked fine. So I started looking at dgpulldown as a possible cause of the problem. That's where I discovered that the source doesn't have progressive flag set in the GOPs. From this thread it appears this isn't an issue. I'm looking to find out if there's a way to confirm that the source is progressive (a requirement of dgpulldown) and not just misflagged. EDIT: BTW, If I reverse the order of my process to shrink first things work and the film part looks great. The reason I wanted the shrink to happen second was a attempt to keep the chapter points correct. There may be another way, but I don't know about that. I'm just really looking to figure out how to confirm progressive frames. And I really think I have done that, but looking for confirmation.

Hi- If you really intend to convert from PAL to NTSC, you'll have to resize from PAL 720x576 to NTSC 720x480. This will mean reencoding. To determine if it's interlaced or progressive, look at the frames. If it's a movie, the chances are very good (but by no means 100%) that it's progressive. If you don't see interlacing, it's not interlaced. The chapter points will have to be adjusted for NTSC. No big deal. If you intend to do it right, don't bother trying the quick fixes, like patching the IFOs.

if the PAL dvd is progressive, just resize and 'assumefps' then encode with pulldown enabled. you'll have to resize the audio by 4% to match. Enf...

Hi guys! What's Doom9's policy about ~1½ decade old thread necromancy? ;) Nah, well, on a more serious note, I found this thread (Google) since I'm driving myself nuts over a small first world:ish problem that has come up. I have this old PAL DVD that I thoughts I'd make a hard drive backup of. I usually keep it untouched (no re:enc) by a simple... Code: