The best Method to make NTSCFilm MPEG2 ?

[Pied-Piper]

which one is better?:
IVTC in TMPGEnc or Forced Film in DVD2AVI
to make non-interlace NTSCFilm(23.976fps) MPEG2 from progressive NTSC DVD source (Film 97%-29.97fps).
what does this 'Film 97%' mean?
does '3:2 pulldown when playback' make better quality?

thanks in advance.

[sterno]

If you can use Force FILM, use it. If you don't and then IVTC, you're first converting from FILM to NTSC and then trying to undo that conversion, which is a waste of time.

"FILM 97%" means that 97% of the material it processed was FILM, and 3% was NTSC. It's very common for things like the studio logos at the start of DVDs to be done in NTSC, sometimes a logo at the end of the disc will also be NTSC (in that case, you might see "NTSC 3%" instead). Normally, as long as the FILM percentage is in the high 90s it's fine to use Force FILM. In theory, audio and video will be slightly out of sync, but if it's just a logo at the start the difference will be a tiny fraction of a second and you'll never notice.

If you're making MPEG2 at 24fps for playback in a DVD player you need 3:2 pulldown. That flag is necessary to tell the DVD player to convert it to NTSC before sending it to your TV.

[Ejoc]

if its 97% Film, then its not an NTSC source.

Use the Force Film, it'll be faster, I found TMPGEnc IVTC and deinterlacing very slow and unstable so I switched to using AVISynth to do it.

[poopyhead]

if you can (i.e if the source allows you to), always try to force film and encode as 23.976 fps + 3:2 pulldown.

given the same bitrate, having less frames to encode (23.976 fps vs. 29.97 fps) allows the encoder to give each frame more bitrate. video quality will be better. there will be no jumpiness as our eyes can't really tell the difference.