Blu Ray Help

raptorz · 25-09-2008, 21:23

I know the basic information when it comes to HD and Blu ray. Im not sure if my current TV supports 1080p (in fact im pretty sure it doesnt) but it does support 1080i. Would this still show a benefit if I got a blu ray player compared to normal DVD and would a blu ray player even work??

I currently have Sky HD and notice the difference greatly but didnt want to spend £200 on a BD player if the difference wasnt going to be much.

Any help appreciated

MAW · 26-09-2008, 07:55

1080i and 1080p are going to look identical on a good TV. However, it's abit of a lottery. Some TVs fail completely to deinterlace correctly, some cannot perform film rate detection and 3:2 pulldown, leaving you with a nasty judder in all slow moving scenes. What TV is it?

raptorz · 29-09-2008, 19:25

Thanks for the reply. I went ahead and got one anyway. I am actually amazed at the picture. It is so much better than Sky HD I wish I had done it sooner!

I only have a cheap HD TV and even so the picture is flawless.

paulr2006 · 30-09-2008, 13:05

Quote:

Originally Posted by raptorz

I know the basic information when it comes to HD and Blu ray. Im not sure if my current TV supports 1080p (in fact im pretty sure it doesnt) but it does support 1080i. Would this still show a benefit if I got a blu ray player compared to normal DVD and would a blu ray player even work??

I currently have Sky HD and notice the difference greatly but didnt want to spend £200 on a BD player if the difference wasnt going to be much.

Any help appreciated

Yes it will work & you will notice a big difference, especially as you do so with Sky HD. Most Movies will be similar to Sky HD or Better (Due to lack of compression) but some
(a few) will not be as good depending upon the transfere.

Matt Quinn · 01-10-2008, 00:13

Quote:

Originally Posted by MAW

1080i and 1080p are going to look identical on a good TV. However, it's abit of a lottery. Some TVs fail completely to deinterlace correctly, some cannot perform film rate detection and 3:2 pulldown, leaving you with a nasty judder in all slow moving scenes. What TV is it?

3:2 pulldown is a feature of film transfer for 30frame/60field systems such as NTSC.... It's something that's done in telecine as a relatively crude means of 'fitting' 24fps film into the 30 fps 'envelope' of the NTSC 30 fps scanning system... And has it's roots in 1930's TV technology!

It's NOT something that's 'done' by any piece of domestic TV equipment EXCEPT a few players which will output 30fps from a 24fps disc... Primarily we're talking about players designed mainly for the US market...

Transfers at 24fps (film rate) are native 1:1 and for most 25frame/50 field transfers a;sp 1:1 with the film simply run 1fps faster than normal....

Judder, as you described here is likely to be a feature of either a mis-match in settings between TV and Player or the result of attempting to play a US type 30fps disc on a machine which is outputting 25fps (thus the player is doing the frame interpolation)....

It varies a lot from machine to machine but basically you want to set your player so that it outputs the native resolution, frame rate and where appropriate colour system recorded on the disc.... i.e. DON'T 'ask' your player to output PAL frame rates or colour from an NTSC disc, or 1080/25 from an 1080/30 disc...

All fixed-pixel displays are natively progressive-scan, meaning that even if the source is interlaced, they'll convert it internally to progressive-scan for display. Deinterlacing is obviously part of that process. But a set incapable of proper de-interlacing would be unwatchable on most domestic sources....

Whilst a LOT of 'HD' sets can't take advantage of the full 1080 resolution as they don't physically have enough pixels on screen, most modern sets will display almost any 'standard' TV signal you can throw at them....

Enjoy your new BD player Raptorz...

25-09-2008, 21:23	#1
raptorz Forum Member Join Date: May 2003 Posts: 3,334	Blu Ray Help I know the basic information when it comes to HD and Blu ray. Im not sure if my current TV supports 1080p (in fact im pretty sure it doesnt) but it does support 1080i. Would this still show a benefit if I got a blu ray player compared to normal DVD and would a blu ray player even work?? I currently have Sky HD and notice the difference greatly but didnt want to spend £200 on a BD player if the difference wasnt going to be much. Any help appreciated

26-09-2008, 07:55	#2
MAW Forum Member Join Date: Jul 2004 Posts: 28,577	1080i and 1080p are going to look identical on a good TV. However, it's abit of a lottery. Some TVs fail completely to deinterlace correctly, some cannot perform film rate detection and 3:2 pulldown, leaving you with a nasty judder in all slow moving scenes. What TV is it?

29-09-2008, 19:25	#3
raptorz Forum Member Join Date: May 2003 Posts: 3,334	Thanks for the reply. I went ahead and got one anyway. I am actually amazed at the picture. It is so much better than Sky HD I wish I had done it sooner! I only have a cheap HD TV and even so the picture is flawless.

30-09-2008, 13:05	#4
paulr2006 Forum Member Join Date: Jul 2007 Location: Nottinghamshire Posts: 1,098	Quote: Originally Posted by raptorz I know the basic information when it comes to HD and Blu ray. Im not sure if my current TV supports 1080p (in fact im pretty sure it doesnt) but it does support 1080i. Would this still show a benefit if I got a blu ray player compared to normal DVD and would a blu ray player even work?? I currently have Sky HD and notice the difference greatly but didnt want to spend £200 on a BD player if the difference wasnt going to be much. Any help appreciated Yes it will work & you will notice a big difference, especially as you do so with Sky HD. Most Movies will be similar to Sky HD or Better (Due to lack of compression) but some (a few) will not be as good depending upon the transfere.

01-10-2008, 00:13	#5
Matt Quinn Forum Member Join Date: Sep 2008 Posts: 166	Quote: Originally Posted by MAW 1080i and 1080p are going to look identical on a good TV. However, it's abit of a lottery. Some TVs fail completely to deinterlace correctly, some cannot perform film rate detection and 3:2 pulldown, leaving you with a nasty judder in all slow moving scenes. What TV is it? 3:2 pulldown is a feature of film transfer for 30frame/60field systems such as NTSC.... It's something that's done in telecine as a relatively crude means of 'fitting' 24fps film into the 30 fps 'envelope' of the NTSC 30 fps scanning system... And has it's roots in 1930's TV technology! It's NOT something that's 'done' by any piece of domestic TV equipment EXCEPT a few players which will output 30fps from a 24fps disc... Primarily we're talking about players designed mainly for the US market... Transfers at 24fps (film rate) are native 1:1 and for most 25frame/50 field transfers a;sp 1:1 with the film simply run 1fps faster than normal.... Judder, as you described here is likely to be a feature of either a mis-match in settings between TV and Player or the result of attempting to play a US type 30fps disc on a machine which is outputting 25fps (thus the player is doing the frame interpolation).... It varies a lot from machine to machine but basically you want to set your player so that it outputs the native resolution, frame rate and where appropriate colour system recorded on the disc.... i.e. DON'T 'ask' your player to output PAL frame rates or colour from an NTSC disc, or 1080/25 from an 1080/30 disc... All fixed-pixel displays are natively progressive-scan, meaning that even if the source is interlaced, they'll convert it internally to progressive-scan for display. Deinterlacing is obviously part of that process. But a set incapable of proper de-interlacing would be unwatchable on most domestic sources.... Whilst a LOT of 'HD' sets can't take advantage of the full 1080 resolution as they don't physically have enough pixels on screen, most modern sets will display almost any 'standard' TV signal you can throw at them.... Enjoy your new BD player Raptorz...

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