I wish I was a master of PQ, but I'm not and have been wrong before. I am still learning.

Anyway, movies/films are normally shot in 24frames per second (24Hz). This is primarily done to save space. Most BD are mastered in 24 fps (technically it is 23.97 fps - this I am not sure why, a real expert needs to explain this). Thus when played back 24 frames are played back in 1 sec. The problem is the eyes is our eyes does not have this refresh rate stuff. Our eyes can normally detect this when a slow panning shot on camera is showing on a screen. We see 24Hz judder. To counter this, most displays repeat each frame 1/2/3/4/5 (24/48/72/96/120 Hz) per second to reduce the effect of judder and thus showing a more natural picture. Again repeating each frame too many times start introducing a "video" like picture and a lot of videophiles dislike this. I have seen refresh rates of up till 72Hz and do not feel that it is videolike. A lot of pjs have this function as well. JVC, Epson and all. I am not sure of the refresh rates of the Optoma. Hope it helps. Again, my explanation might be slightly off. I believe ar188 is pretty well versed with this stuff as well. Correct me if I am wrong.

The thing is 24Hz judder is as the director meant it. So it is not all that bad. The 24Hz conversion to non multiples of 24/48/72/96/120 like 60Hz, 100Hz is where the judder becomes unbearable. I believe that is what is happening in the case of the AMP being turned on for the Samsungs and other displays that have options for processing of 24Hz material wrongly.

Edit: I believe the term speed up I used in the earlier reply was wrong. It is actually 24Hz being displayed at 48/72/96 Hz , meaning the frames are repeated. Speed up is only normally done for 24fps > 25Hz (each frame is sped up).

This post has been edited by anfieldude: Feb 27 2009, 10:46 AM

friday already!

To add: what's the main difference between refresh rate (like the 100Hz/200Hz tv?), 24 fps (does dvd has this feature?) and motion flow (??) It's all a bit confuse to me... And secondly, do all 1080p tvs have 24fps feature? Thanks...

ps - on a personal note, I love watching bds (at shop's demo) with the so-called "videolike" look aka 24 fps... it takes me to another level of viewing movies (unlike at cinema) and one important reason why I'm upgrading to bd, apart from its great PQ & AQ of cos... Thinking of buying 1080p tv this year but to be absolute sure to get the right model/type dat can handle these feature.

Refresh rates are the number of frames the display will show in a second. Same as fps. 100Hz display will take a 50Hz signal and display each frame 2 times this reducing motion related issues when you eye looks at it (thats why sports from Astro looks better on a 100Hz display). 200Hz is the same. Motion flow is a proprietry term used by Sony I believe. It is basically the algorithm/processing on how Sony gets their displays to display 200Hz.

Most new displays have 1080p/24Hz capabilities. The key is if they have implemented them well. Some take the signal and display them at 48Hz, some at 72Hz and some at 96/120Hz. See which looks good to your eyes. Some say displaying the same frame too many times makes the films look more like videos. Some like it some don't, its your preference.

NTSC DVDs do normally have the original 24fps flags in them. If your display can recontsruct the flags you can theoretically extract the 24hps from a DVD. Some displays have this capability. Most video processors have this capabilities as well (Lumagen, DVDO). Again, some BD players have this capability as well (Panasonic BD35, upcoming Oppo BD83).

If this is the wrong place to discuss this, my apologies.

In your earlier post, you mentioned AMP. What is & is it related? BTW, thanks for the comprehensive yet simple explanation... appreciate it, dude!

Just to chip in. AMP stands for Auto Motion Plus. It's a pretty name for frame interpolation that predict motion between frames. It smooths out the judder and make film looks like soap opera. When I first looked at it, i felt like it took out the feeling of a movie (dramatic feeling). but after a couple of days, I can't watch without AMP.

here's nice explanation with pictures

http://www.amazon.com/Samsung-LN46A650-46-.../ref=pd_ts_e_3#

I'm the total opposite

When I first saw it I was like "wahlauwei...damn kau realistic 3d popping awesome wei...". But after a day I decided I don't really like it and turned it off

OIC. You were saying, if your tv has this feature, you can choose to activate (24 fps/Hz or not) to your liking, izit? If dat is so, then its pretty neat... imo and yup, I agree... the 24 fps/Hz is more of a personal preference in viewing. Some like tea, some like coffee... TQ

So, whether you have a 100Hz/120Hz/200Hz feature or not on your LCD TV is not critical as long as you have 1080/24fps, am I right to assume? The AMP actually causes judder rather than reduce it? Sorry, this is all quite technical to me and I have always thought that 100Hz and above is important to reduce the judder.

I am getting the 36bit data from BD playback..is this a good thing??

mpyw,

I believe if u r using HDMI 1.3b capable AVR the Kuro will display 36bit. So its correct. If you were using a HDMI 1.1, I believe you would not be able to see 36bit on the Kuro. On my Onkyo PS3 home menu and BDs play at 36bit. I think your previous AVR was a lower spec HDMI and I believe it might have only shown 24bit colour or nothing at all.(not 30bit as earlier :EDIT).

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Added on February 27, 2009, 3:33 pmThis is correct. Having a display that is capable of accepting 1080p/24fps is important. The AMP will probably cause judder for BD or 24Hz but a lot of people might not even realise it or can live with it. 100Hz and above is only important for PAL material that is in 50Hz so that for fast moving sports action you see a more natural picture. 100Hz is absolutely critical if you are watching football from Astro, else the motion will look weird.

It is another thing if you like it that the 24Hfps is reproduced at such high scan rates ie, 120/200Hz.

This post has been edited by anfieldude: Feb 27 2009, 04:28 PM

hey anyone knows that of we purchase Sony LCD from Singapore..can it be send to sony malaysia for warranty?..my fren said got international warranty..but not sure can or not. Plan to buy this KLV-40W400A

i'm with you ARJ, those motiong thingy actually is kinda sucky for me too.. looks too digital.... no film feel...

But I tot that 24 fps is actually what all film frame rate supposed to be in motion picture, right? Well, I could be wrong...

i'm currently using this lcd tv right now
bought it since it was first launch

Hmm, possible ghosting in 1 scene for IP man. Where the northern master stands at the entrance to ip man's house before challenging him.

Overall a nice film... but I think its too grainy. Its probably only a slightly better than DVD quality to my eyes.

Hard to believe that Yen didn't practice wing chun before this... nice.

Guys i need help ...im using 40gb MSG 4 Ps3 japan version. so wat region blue ray movie i should buy. is it A,B or C.

Region A or region free

ARJ...you're too nice...I'd have said 'RTFM!'

yeap.. you can turn it on/off. At first I turn it on ( it has low, medium, high setting) for playing games coz i love seeing those alien creeping at real life speed in Dead Space. and turn it off when watching lovey-dovey movie to make it look film-like. usually i forgot to turn it and it's on all the time. so now I'm used to it and still feeling the film-like effect even it's on.

btw, CG movies look great on AMP. I watched Mada2 and Monster Inc recently and both of them are awesome.

This post has been edited by irwan6179: Feb 28 2009, 01:27 AM