mixing 24p and 30i

[Shane Ross]

Are we talking 24p that is running at 29.97? Or 24p ADVANCED that is running at 23.98?

BIG RULE: Never mix frame rates in one sequence. So if you have 23.98 footage and 29.97 (30i), then you need to convert one format to the other.

Shane

GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
Read my blog, Little Frog in High Def

[Alec Gitelman]

well, it’s not 24pa, but it’s 24p that was conformed to true 23.98p using cinema tools. a lot of the footage is like that. but some scenes i need to cut in are shot in 30i. how do i best conform it to 23.98p?

also it’s more of a DVD authoring question, but can i get in trouble if i put both 24p and 30i clips in the same dvd (not same tracks of course)?

[Michael Sacci]

[alec gitelman] “also it’s more of a DVD authoring question, but can i get in trouble if i put both 24p and 30i clips in the same dvd (not same tracks of course)? “
Is are no issues authoring a DVD with different frame rates in different tracks.

[Kevin Monahan]

I would conform to 29.97, not 23.98. Add pulldown to your 24p clips to bring them back to 29.97 and edit them into a 29.97 timeline.

Kevin Monahan
http://www.fcpworld.com
Author – Motion Graphics and Effects in Final Cut Pro

[Shane Ross]

[alec gitelman] “how do i best conform it to 23.98p?”

Compressor. Turn on the FRAME CONTROLS and put everything to BEST and then go away on holiday for the weekend. This will take a long time.

[alec gitelman] “can i get in trouble if i put both 24p and 30i clips in the same dvd (not same tracks of course)?”

Yup. Mixing frame rates is never recommended and always problematic.

Shane

GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
Read my blog, Little Frog in High Def

[John Fishback]

I just ran into a problem with a 24P DVD.I had shot DVCPro HD 720 24PN and edited in a 23.976 timeline. Then I encoded a 24P mv2 using BitVice. I saw a 23.976 to 29.97 preset, but no true 23.976 preset so I made my own and encoded.

When I tried to import that into DVD Studio Pro I got an error. I then encoded the file with Compressor set to 23.976 and it worked. I emailed BitVice and quickly was informed by Roger Andersson that DVDSP doesn’t work with 23.978, only 29.97. I never had heard that before. Compressor was actually adding pulldown when making its supposed 23.976. I tried BitVice again using the 23.976 to 29.97 preset and DVDSP was happy.

So I guess the bottom line is if you’re ending up with a DVD and using DVDSP, you may as well work in 29.97 (24 over 60i) since you’re going to have to add the pulldown later.

John

MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.5 QT7.5.5 Kona 3 Dual Cinema 23 ATI Radeon HD 3870
ATTO ExpressSAS R380 RAID Adapter, PDE Enclosure with 8-drive 6TB RAID 5
24″ TV-Logic Monitor
Final Cut Studio 2 (up to date)

Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN

[Shane Ross]

Ignore me…do what Kevin says.

Shane

GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
Read my blog, Little Frog in High Def

[Alec Gitelman]

so can i just leave the 30i in the 24p timeline, then export using compressor for DVD with “best” setings? or do i have to go into each clip, get source file, convert to 24p, get it back into timeline, etc..? i mean, i’ll kill the next few days doing that and i can’t justify it, even if it does make it look better..

[Alec Gitelman]

ok… i can believe that…
but i do see a difference in image quality between the footage that was reverse telecine’d and that wasn’t when playing the dvd. what’s going on there?

[Alec Gitelman]

ok. why?
i’m sorry, maybe i’m asking the same questions over and over again, but there’s just so much to wrap my mind around.. in addition to seeing what i’m seeing on the screen.