DVD2AVI Question!

[KingSeti]

Good day to all! I have a question that I hope someone can help me with. I ripped Blade and called it up in dvd2avi for processing. While playing or should I say previewing, it is going back and forth from ntsc to film(and percentage gets higher and higher). Finally after about 12 minutes into the preview it showed Film 97% but would still go to Ntsc. My question to the experienced, set forced film on and encode at 23.976 or turn forced film off and encode at 29.97? Thanks for the help!

[SLK001]

I would use "FORCE FILM", since it is really unlikely that it is NTSC. Probably, you had the previews or studio header in your "Preview", which will sometimes throw DVD2AVI off the track.

[poopyhead]

if there are any annoying "interlaced lines" in your rip, you can fix that w/ the "de-interlace" filter in tmpgenc (preferably the adaptive double or adaptive blend, depending on which version of tmpgenc u have)

[adam]

It sounds like a hybrid disk to me. To be sure go ahead and make a project file with forced film on and load it in TMPGenc and preview it frame by frame. Look for any interlaced frames but look through alot of frames, don't just assume its ok. If you do see interlacing than make a new project file with forced film off. Now you need to either encode at 29.97fps (interlaced if making svcd, progressive if making vcd) or do an IVTC using a filter that can accommadate hybrid material. The only IVTC filter that I have found which does this well is decomb.

If you just want a quick and easy method and don't care about an interlaced frame popping up here and there, then just enable forced film and encode at 23.976fps, but you may also get choppy playback during those "ntsc" parts.

[poopyhead]

hey adam,

turning forced film off may be a little bit extreme in this case. the video is nearly 97% FILM. de-interlace will take care of any (prolly very minor) interlaced lines that do show up when forced film.

making output interlaced will lower the quality and manual IVTC on a 2+ hr movie is gonna be a lotta work (assuming the guy knows how to manual).... i haven't heard of an auto IVTC that doesn't make any mistakes..most auto IVTC still result in interlaced lines

hence, i think the route u mentioned for hybrid should only be if absolutely necessary, like when the video is under like 80-90% FILM.

making the output interlaced worked well for me when the video was completely, or almost completely, NTSC.

[adam]

It does not matter that it is mostly film if it is a hybrid disk. If you use forced film than for any part that isn't pure film it will decimate random frames to make it 23.976fps. For any pure ntsc parts, which there appear to be sporatically throughout the movie, they will not only likely still have noticable interlacing but they will be very choppy. Try taking a 29.97fps clip and converting to 23.976fps in TMPGenc and you'll see what I mean. I mentioned that if he uses forced film he will see the occasional interlaced frame pop up, and that if he can live with that then using forced film would be the easiest method for him, however this is not the highest quality route to take.

I never said anything about a manual IVTC. There are plenty of auto IVTC filters that will work very well on hybrid material, or on just about all but the most difficult material. Using decomb you can do an IVTC that will account for the hybrid material. Yes it will slow down the encoding process but this would be the best way to handle a hybrid disk, if this is what we are dealing with. Also an IVTC process in decomb is not going to slow down encoding much more than a deinterlacing filter, since that's essentially all it is anyway. If you are going to run a slow filter over your movie you may as well do it the right way, if the time involved is the same.

[poopyhead]

hey adamn,

which auto IVTC filter is good and doesn't make mistakes? is it in tmpgenc, and if so, which versions?

[adam]

No definitely not TMPGenc. Use decomb.