3:2 pulldown on NTSC 23.976????

[Sylfest]

I have created a couple of SVCDs with TMPEGEnc using the NTSC Film settings (23.976 fps) becasue the source has been 23.976. I then create a SVCD cd using Nero 5.5. Nero creates (or at least it says so in the properties) a 29.97 fps SVCD. It seems to work fine in my dvd player, and I am wondering if there is any need for me to use 3:2 Pulldown before burning with Nero.

Does nero perform 3:2 pulldown automatically?

Would there be any quality gain by performing 3:2 Pulldown before authoring?

What would happen if I encode a 23.976 fps source at 29.97 fps with TMPEG?

Hopefully someone has the aswers to these questions.

[Doom9]

what's the source fps for the file you encode in nero? pretty sure it performs pulldown when necessary. If you manually change the fps in tmpg rather than to apply 3:2 pulldown your video will be too fast. and there's no reason to apply pulldown manually if the encoder can do it

[Sylfest]

Thanks for the reply, Im getting pretty sure Nero does some conversion if necessary, but here is my info.

I converted an avi file (with 23.976 fps) to mpeg2 using TMPGEnc NTSC film settings keeping the fps of the new mpeg2 file the same as the avi source file (23.976 fps). I then burn it in nero using the SVCD settings. When I check properties of the mpg file that I am using it says that it has a fps of 29.97 but I know this is not so.

I am not sure if Nero just says it is 29.97 fps because that is the standard for NTSC SVCD, or if it actually converts the mpg file from 23.976 fps to 29.97 during the authoring.

The results look pretty good regardless of what Nero does, but I am wondring if I can improve the picture quality even further by using 3:2 pulldown in TMPGEnc before authoring with Nero.

Thanks again for a great website.

[zambelli]

Nero is just reporting 29.97 because it's the NTSC standard frame rate. Feel free to ignore it. The real pulldown is set in TMPGEnc. Your best bet is to choose "3:2 pulldown when playback" and leave the actual movie at 23.976fps.

[zeroboot]

in tmpgenc even if you use File...Preview you will see that the framerate is 29.97