For all of the folks that asked about 1080p/24 - why use it, why have it, is it necessary, etc. I did some research and found the facts below. Please note also that almost all new displays coming out recently have 120Hz and more are showing up with 240Hz.
I think its FANTASTIC that the Oppo -83 has this feature included on the player for Blu-ray and SD DVD so those with a display that supports this can take advantage of it now - or those thinking of getting a new display in the near future will be able to use this. As of right now the only other player that offers this is the Panasonic 35, 55, 60, 80.
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Having a display that accepts 1080p/24 signals and having a display that refreshes the image on the screen at multiplies of the original frame rate will eliminate the 3:2 pulldown judder and offers smoother camera pans. The image also has a more film quality look compared to a 60HZ video look that consumers have been viewing for decades.
Bypassing 3:2 pulldown 60HZ is the primary purpose of 1080P/24 signals. 1080P at 60HZ still looks good. True 24fps refresh rates just gives the image a more of a film look with no 3:2 pulldown judder during camera pans.
More and more displays are converting 24FPS material to refresh rates of 72, 96, 120, and 240 for maximum display quality. Flashing each frame 3, 4, 5, or 6 times improves screen imagery that matches the quality of the original film. For example, if the set has 120-Hz native operating frequency it will repeat each frame in a 24-Hz source five times to reach 120 Hz.
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If you want to know if a your display supports 1080p/24 signals, check out this link on Blu-ray.com http://forum.blu-ray.com/showthread.php?t=5155