Obi-Wan has taught you well, Netty
here's my slight "observations"
PAL's color space is just a leeetlee bigger than the
current NTSC color space (which is limited today by SMPTE "C" phosphours chromacities) (i can feel someone's rolling eyes coming soon

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PAL's 25fps movie rate looks smoother cus as Netty says, A: It doesnt have frame repeats, plus B: It's faster, so actually movements look a leeetlee more alive. (Well i can see it

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Progressive Players do eliminate the interlace blurriness on NTSC but they do that too in PAL cus both are interlaced formats on regular displays.
Now, the repeat frames are still there in NTSC progressive players unless they output refresh rates of multiples of 24 (like 72 Hz or 96 Hz or 120 Hz). Since most NTSC Displays are 60Hz they still have to repeat frames to convert from 24 -> 60 . Being progressive, Progressive NTSC players do repeat in full frames instead of merged interlaced half frames (fields) so they look better but they still do have to do the repeats in an odd pattern for a 60Hz display.
PAL being 25fps for film and 50Hz for videotape goes smoothly into 50Hz and 100Hz displays instead of the odd NTSC 24->>60 pattern.
On the other hand, some DVD progressive players, and DVD software players on computers can output in 72Hz for NTSC if your display can do it (You could for example force your refresh rate on your puter to 72Hz or 96 Hz for NTSC films, 60 Hz for NTSC videotaped/edited shows and the Oklahoma! Todd-AO movie, 120 Hz for everything NTSC, 75 Hz for PAL films, 50 or 100 Hz for everything PAL, etc.)
(A 120 Hz refresh rate would probably work nice with PAL nicely too cus it's so high the motion would be look smooth

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Also some software players have a PAL 25 -> 24 playback conversion option i've heard.
btw eap_44's figures should read:
R1/R2/R3/R4 NTSC: 720 x 480 pixels at 24fps for film, 30fps for certain things like some computer animation and Oklahoma!
(and i've seen a couple of videos at 30fps so stuff exists!), and 60 interlaced fields for videotaped shows, and average bitrate is 4.95 mb/s
R2/R4 PAL: 720 x
576 pixels at 25fps for film, 50 interlaced fields for videotaped shows, and average bitrate is 7.3 mb/s
I rounded up NTSC's odd 23.976 fps, 29.97 fps and 59.94 Hz prescise figures for sanitary reasons
What it all means is that PAL DVDs, all else being equal in the transfer, have 20% more resolution, size, and pixels and the grain/noise/mpeg artifacts could look 20% smaller, there's no frame repeats, and the color space could be about 5% bigger.
Of course, you can't see this difference on a NTSC display, so you'd have to play the PAL disc on a 800 x 600 or bigger puter monitor, a PAL display, or a HD display (1080p displays now available in a dealer near you!

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btw i remind that
that final Beauty And The Beast PAL pic on the thread is just an analog board capture (the analog S-VHS output of a DVD player) as opossed to the NTSC one which is full digital raw data.

so the actual PAL digital data might look even better.
Jafar if you want to see, maybe i could pick you up in my Batplane one day and take you to Dethisland
