Inverse telecine question

[stanger89]

Originally Posted by blwegrzyn

original 24fps > 3:2 > 59.96 interlaced > is this what is recorded to DVD?

Yes.

on pc:
DVD > IVTC > 24fps > interlaced signal (would not this be exacly what was on DVD) > deinterlace > output to tv ???

Not quite:
DVD > IVTC results in 24fps progressive video, no further deinterlacing takes place. No it's not "exactly what was on the DVD" in that it doesn't contain the extra fields encoded on the disc, but it is exactly what the disc was made from.

Basically the telecining is "excess information" placed on the disc to make the movies play well on NTSC TVs. This information is unnecessary, and problematic on progressive or in general anything other than an NTSC display, thus it's best to strip it.

I performed some tests with playing the original interlaced signal on my pc and the only way to get the correct output was to disable deinterlacing and IVTC.
The input signal was from here:
http://www.kingcot.eclipse.co.uk/uni...tvoutTest.html

First that's PAL which is slightly different issues. And second, if you're not getting the right output then the IVTC and/or deinterlacing isn't working right.