Convert framerate without re-encode

[asisoft]

I got a MPEG moive with framerate 30 fps. I wanted to burn it into DVD but 30 fps is not the standard rate for NTSC.
I just wonder whether there are methods to convert 30 fps into 29.97 without re-encoding the moive.

[lpn1160]

Try pulldown, in the tools section

[asisoft]

I use pulldown to convert 23.976 fps into 29.97. But I am not sure it can be done in the other way round (i.e. from 30 to 29.97)

[bugster]

Use DVD patcher, patch the whole file when asked. Set the new framerate to 29.97fps.

Audio sync may drift slightly but it shouldn't be noticeable unless it is a really long movie.

[FOO]

3.6 seconds per hour seems more than "slightly"

[SLK001]

PULLDOWN, DVDPatcher or RESTREAM will do what you need. There is no need to re-encode.

[bugster]

3.6 seconds per hour seems more than "slightly"

Hmmm, you are right. Never actually calculated it. 30.00 - 29.97 = 0.03. Just looked like a pretty small number to me

[FOO]

That's what I thought too. Then I did it .
My rule of thumb is anything more than 2 frames outta sync
is too much. ~ 66 ms
The difference is 1 part in a thousand or 1 second every 17 minutes.
So outta sync is detectable after around 1.2 minutes