24p PAL-- does it exist?

fwtep wrote on 7/16/2005, 10:43 AM

I know I can render a project as "DVD Architect 24p NTSC" (and widescreen), but is there a PAL version of that? I'm aware that most current PAL DVD players can play NTSC, but I need to know if there is a real 24p PAL?

I have a project that I've removed the pulldown on (it was shot on film) and although rendering from 24 to 25 is much better than going from 29.97 to 25, it would naturally be much better to just leave it at 24.

Comments

Coursedesign wrote on 7/16/2005, 11:19 AM

PAL is always 25 fps and NTSC is always 29.97 fps.

DVD players can do something special though.

"DVDA 24p NTSC" means that a flag is set that tells a DVD player to create extra frames (by combining fields from adjacent frames in a certain way) to output 29.97 fps interlaced in "the one and true NTSC format." :O)

With PAL it's not cost effective to convert from 24p to 50i in the player, so the 24 fps are speeded up 4% to 25 fps when creating the DVD instead, akin to how feature films are shown on PAL broadcasts.

fwtep wrote on 7/16/2005, 3:53 PM

Thanks for the info!

farss wrote on 7/16/2005, 4:02 PM

The only downside that I can see to creating a 24p DVD if you're coming from a PAL source and are going to play the DVD in a PAL country is the loss of resolution. The again as only 24 fps are encoded I assume the encoding can be more efficient.
I do seem to recall rumours of DVD players and displays that'll handle 25p which would be usefull as I think the there's some cmaeras that'll shoot 25p.
Bob.

AlistairLock wrote on 7/17/2005, 2:20 AM

"DVDA 24p NTSC" means that a flag is set that tells a DVD player to create extra frames (by combining fields from adjacent frames in a certain way) to output 29.97 fps interlaced in "the one and true NTSC format."

Can a a DVD player do that on the fly, given that Vegas has to painfully render the frames in the first place?