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Joined: Aug 2004
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Ian
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President of the Imperial Galactic Government
President of the Imperial Galactic Government
Joined: Aug 2004
Posts: 7,950
Likes: 19
I can understand the relevance of 1080p24 for HD-DVD and Blu-ray, but would 1080p/24 be of relevance with upscaled DVD's or is 1080p50/60 more in keeping with the internally stored format.

I have never fully understood how each frame of a DVD is actually stored on disc - whether they are progressive, interlaced, or segmented frame.

But would I be right in saying that they are encoded at 25 or 30 fps, thus, extracting a 24 fps feed from these would not offer any benefit over and above what may be done inside a standard TV.

The reason I ask is that, with all the talk of judder on smooth pans, my G98/TV combo behaves differently on the 'Pan over the castle' scene towards the beginning of Pirates of the Caribbean 1 in PAL. When viewing in component mode, the fly past is silky smooth, but in HDMI/DVI mode, I see a very slight judder. I have seen 3:2 pulldown, and I don't think it is that as its not as noticable (as 3:2) and the disc is PAL.

Just wondering if a decent extract to 24fps by a G9x/800 would cure this - assuming my TV could accept 1080p24. My display will accept 1080p50/60 but due to the data rate, not display things smoothly. I give it a 50:50 chance of being able to accept 1080p24/25/30 and would hope that the reduced data rate would finally allow smooth 1080p playback.


Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).
Joined: Jun 2006
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Working on the ultimate question
Working on the ultimate question
Joined: Jun 2006
Posts: 1,653
Likes: 1
DVDs are stored as 50/60Hz interlaced depending on their region. But there is still exactly the same benefit as for HD from using a scaler to derive a 24Hz frame rate or multiple from an NTSC DVD, eg no 3:2 cadence stutter... PAL shouldn't really have this issue as it's a 2:2 format, so 50Hz from source should still be stutter free.

Mark

Joined: May 2000
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Senior Shouting Officer
Senior Shouting Officer
Joined: May 2000
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he shoots--- he scores!

best regards,
Jerry


Best regards,
Jerry
Main System: 861v6, DSP8000s in corners, DSP7000s Center and Sides, 1-9 humans.
Joined: Apr 2005
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The problem with PAL DVDs is that they go to fast;) about 4%


Regards Joern
Editor, Watt Magazine, Norway
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