IVTC and 3:2 pulldown in TMPGEnc for DVD creation

[webbjs11]

I use a SONY Digital8 camcorder to record NTSC video off my DirecTV TIVO system. I capture and edit the material in Adobe Premiere. I than use TMPGEnc to encode the material to DVD format.

It seems that whether I use field order A or B, I get what look like interlacing effects. I than tried IVTC which seemed to take care of the problem. I than imported the IVTC MPEG-2 in DVD-Lab, only to be prompted that it needed 2:3 pulldown. I than re-encoded the material in TMPGEnc with IVTC selected (this defaults the frame rate field to 23.976)and selected 3:2 pulldown when playback (this added the information "internally 29.97fps" to the frame rate field description. The result is accepted in DVD-Lab.

Is this an OK way to go? Is IVTC really the right way to go if I'm not sure the material was FILM to begin with? Why did IVTC seem to take care of the problem? What does the 3:2 pulldown really do?

[bugster]

Not usre why you would need IVTC unless its as a result of something the TIVO does, perhaps it always stores material at 23.976fps with 3:2 pulldown to reduce file size (less frames means it needs less bitrate). Dunno, just guessing at that.
So when you capture it with your DV cam, it is effectivley telecined back to 29.97fps.

But adding 3:2 pulldown flags to 23.976fps material is mandatory for NTSC DVD. The flags just tell the player to repeat certain fields in the source material in a 3:2 pattern such that the final framerate will be 29.976fps.