Wow... 6 messages from me in one day to the list. Must be a ..... ok,
I'll stop. :( ...at 7.
Joel
Joel Ebel wrote:
Wow... 5 messages from me in one day to the list. Must be a personal
record.
Joel
Joel Ebel wrote:
You are mistaken. NTSC DVDs and PAL DVDs are encoded differently.
NTSC DVDs are encoded at 29.97 fps interlaced video, and PAL DVDs are
encoded at 25 fps interlaced video. In addition, PAL has more 576
scan lines as opposed to 480 for NTSC.
However, many DVDs are created from film which is at 24 fps, and DVDs
can contain the data at 24 fps progressive. They also contain MPEG-2
repeat_first_field flags in the video to tell the decoder to perform a
2-3 pulldown on an NTSC dvd. In the case of a PAL DVD, the flags tell
the decoder to perform a 2-2 pulldown which results in a 4% speedup at
50 Hz. Even though the source is the same, the flags are different
for NTSC and PAL discs. Again, the resolution is also higher on the
PAL discs as well, so they take up more space.
The dvd faq at dvddemystified.com has some good information on this.
As for encoders that can translate, I'm not certain, but you might try
out ffmpeg or mencoder. Maybe VLC could do something like this.
Joel
Tarus Balog wrote:
On Oct 13, 2005, at 1:40 PM, Greg Brown wrote:
Speaking of which, does anyone know of a tool (or set of tools) on
Linux which can "reencode" (or whatever the correct term is) a PAL DVD
to NTSC. In other words, I'd like to be able to rip a PAL DVD so that
I could watch it on a regular DVD player and not just on a computer.
I didn't think there was a difference at the DVD level between PAL
and NTSC - that would depend on your DVD player and the output signal
it creates. The DVDs should be the same except for region codes (and
you might be able to turn your DVD player regionless with the right
hack).
Am I off base here?
-T
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