Aspect Ratio & Bitrate Question

paranoya7 · 27th December 2017, 23:20

I have 2 different versions of 3 3D movies but i dont know which one should i watch and have best quality. I hope anyone help me with reasons. I dont know here for best asking this question. If it is wrong sorry for that. I will watch them with my 42" TV with using mpc be from my computer.

(These 2 versions almost same quality but i wonder the bold species important or not important)

Screenshots & nfos

https://i.hizliresim.com/6yonE7.png
https://i.hizliresim.com/WGNYy2.png

Nfo 1

Quote:

Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
MultiView_Count : 2
MultiView_Layout : Top-Bottom (left eye first)
Format settings : CABAC / 3 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1 h 58 min
Bit rate mode : Variable
Bit rate : 13.6 Mb/s
Maximum bit rate : 40.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.273

Nfo 2

Quote:

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
MultiView_Count : 2
MultiView_Layout : Side by Side (right eye first)
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1 h 58 min
Bit rate : 13.6 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.273

https://i.hizliresim.com/JO03dE.png
https://i.hizliresim.com/9DnGp9.png

Nfo 1

Quote:

Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2 h 34 min
Bit rate : 16.4 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.329

Nfo 2

Quote:

Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
MultiView_Count : 2
MultiView_Layout : Side by Side (left eye first)
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2 h 34 min
Bit rate : 11.5 Mb/s
Width : 1 920 pixels
Height : 1 008 pixels
Display aspect ratio : 1.905
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.248

https://i.hizliresim.com/rJAEVN.png
https://i.hizliresim.com/EyX3p8.png

nfo 1

Quote:

Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
MultiView_Count : 2
MultiView_Layout : Side by Side (left eye first)
Format settings : CABAC / 6 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 6 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2 h 20 min
Bit rate : 16.7 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.336

nfo 2

Quote:

Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
MultiView_Count : 2
MultiView_Layout : Side by Side (left eye first)
Format settings : CABAC / 5 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2 h 20 min
Bit rate : 9 655 kb/s
Width : 1 920 pixels
Height : 800 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.262

Ghitulescu · 4th January 2018, 10:30

A higher bitrate, in identical conditions will provide a better quality. Whether this is also seen, depends on other factors, in particular speed of motions.

Maybe I am wrong, but I thought that 4 ref frames (not 6 as in the last example) is the maximum allowed? This would suggest a reencoded (home brewed) movie, not the original.

Also the cropped frame size (1008 pixels) converges to the same conclusion.

To this is added the relatively low bitrate for 3D movies. But this is debatable.

In that case, the best is to have the originals and not some copies....

Groucho2004 · 4th January 2018, 18:56

Quote:

Originally Posted by paranoya7

I have 2 different versions of 3 3D movies but i dont know which one should i watch and have best quality.

Buy the BluRays and you don't have to worry about the quality.
By the way, read the forum rules (hint: rule #6) before posting.

Wilbert · 8th January 2018, 23:13

Quote:

By the way, read the forum rules (hint: rule #6) before posting.

Thread closed.

4th January 2018, 10:30	#2 \| Link
Ghitulescu Registered User Join Date: Mar 2009 Location: Germany Posts: 5,769	A higher bitrate, in identical conditions will provide a better quality. Whether this is also seen, depends on other factors, in particular speed of motions. Maybe I am wrong, but I thought that 4 ref frames (not 6 as in the last example) is the maximum allowed? This would suggest a reencoded (home brewed) movie, not the original. Also the cropped frame size (1008 pixels) converges to the same conclusion. To this is added the relatively low bitrate for 3D movies. But this is debatable. In that case, the best is to have the originals and not some copies.... __________________ Born in the USB (not USA)