Quote:
Originally Posted by sanlyn
Almost all PAL DVD players sold in PAL countries play both PAL and NTSC for viewing on TV. NTSC and PAL DVD are usually interlaced.
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Not quite.
PAL players play NTSC as a quasi-NTSC signal, similar to "NTSC-50" (the inverse of PAL-60).
Unlike analog formats, which has special color encoding, digital is just YUV data and frames per second. The NTSC video is output in one of several ways:
- 29.97 decimates to 25
- 29.97 converted (ghosted) to 25
- output as 29.97 and just let the TV handle it (and it does the same thing)
It's the same for viewing PAL in NTSC-land. Most players support both NTSC and PAL, since they're all cheaply made in China with universal kits. Only the earlier DVD players and Blu-ray players tend to be NTSC-only or PAL-only.
Quote:
Originally Posted by toyota
The tapes were originally recorded by them in NTSC on a USA camera, but we're in the UK so I now want to get these onto DVD in a PAL resolution if I can.
I've had a good read around and seem to have found varying answers, the common thing being to resize to 720x576. My confusion comes when people are talking about de-interlacing first then re-interlacing, but I've also seen some comments that de-interlacing causes image quality issues, so I'm not sure how to proceed.
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Since the source tapes are NTSC, it's best to leave it as NTSC. And then let the digital player sort out the while NTSC vs. PAL ordeal.
The resize/deinterlace suggestion is horrible. Never do that to your source, only a copy. Better yet, avoid it when possible. Deinterlacing is mostly for uploading to Youtube/etc, special restoration needs, etc -- not making discs. Leave discs interlaced.
Deinterlacing throws away 50% of the image data, and you cannot get it back.