How to tell which has better quality? Curse Of the Golden Flower 1080p mkvs

[tigerb]

A friend provided me with links to the Chinese Blockbuster movie "Curse Of the Golden Flower 2006 1080p", however one is 15GB and the other version is 10GB, both are 1920X816.

How does one tell which has better quality? (naked eyes couldn't really tell the difference) or can I always assume the bigger the file size is always better in quality wise? I only downloaded the 1st part of both versions just to preview.....

Thanks.

15Gb video
Format : Matroska
Format version : Version 2
File size : 2.15 GiB
Duration : 1h 53mn
Overall bit rate : 2 708 Kbps
Encoded date : UTC 2011-06-26 05:09:26
Writing application : mkvmerge v4.8.0 ('I Got The...') built on May 24 2011 03:12:58
Writing library : libebml v1.2.0 + libmatroska v1.1.0

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Format settings, GOP : M=1, N=46
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 53mn
Bit rate : 2 014 Kbps
Width : 1 920 pixels
Height : 816 pixels
Display aspect ratio : 2.35:1
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.054
Stream size : 1.60 GiB (74%)
Title : Curse Of The Golden Flower (2006)
Writing library : x264 core 115 r2008 4c552d8
Encoding settings : cabac=1 / ref=5 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=tesa / subme=10 / psy=1 / psy_rd=1.10:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=9 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc=crf / mbtree=0 / crf=16.7 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:0.70
Language : Chinese

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : A_AC3
Duration : 1h 53mn
Bit rate mode : Constant
Bit rate : 640 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 520 MiB (24%)
Title : AC3 5.1 @ 640 Kbps
Language : Chinese

Text
ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Language : English

Menu
00:00:00.000 : en:00:00:00.000
00:07:35.789 : en:00:07:35.789
00:16:01.794 : en:00:16:01.794
00:24:58.247 : en:00:24:58.247
00:35:45.393 : en:00:35:45.393
00:46:16.732 : en:00:46:16.732
00:55:13.644 : en:00:55:13.644
01:05:06.361 : en:01:05:06.361
01:11:48.262 : en:01:11:48.262
01:22:02.918 : en:01:22:02.918
01:34:14.899 : en:01:34:14.899
01:43:26.534 : en:01:43:26.534

10GB video
Format : Matroska
Format version : Version 2
File size : 400 MiB
Duration : 1h 53mn
Overall bit rate : 490 Kbps
Movie name : "Encoded_by_HDBRiSe"
Encoded date : UTC 2009-06-27 11:31:05
Writing application : mkvmerge v2.9.5 ('Tu es le seul') built on Jun 7 2009 11:07:07
Writing library : libebml v0.7.7 + libmatroska v0.8.1

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 53mn
Nominal bit rate : 10.4 Mbps
Width : 1 920 pixels
Height : 816 pixels
Display aspect ratio : 2.35:1
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.277
Title : "Encoded_by_HDBRiSe"
Writing library : x264 core 67 r1173M f6d3166
Encoding settings : cabac=1 / ref=5 / deblock=1:-2:-2 / analyse=0x3:0x113 / me=umh / subme=7 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=6 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=3 / wpredb=1 / keyint=240 / keyint_min=24 / scenecut=40 / rc=2pass / bitrate=10405 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00
Language : English

Audio #1
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 1h 53mn
Bit rate mode : Constant
Bit rate : 1 510 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.20 GiB
Title : Chinese DTS
Language : Chinese

Audio #2
ID : 3
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : A_AC3
Duration : 1h 53mn
Bit rate mode : Constant
Bit rate : 640 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 522 MiB
Title : English AC3
Language : English

Text #1
ID : 4
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Title : English
Language : English

Text #2
ID : 5
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Title : English SDH
Language : English

Text #3
ID : 6
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Title : French
Language : French

[guns1inger]

You cannot tell from size alone. The bigger one may have a lost of wasted data by using more bit rate than required, or it may be encoded with inferior settings.

The best way to guarantee you are getting the best quality is to buy the bluray instead of downloading an inferior version encoded by some hack.

[redwudz]

Buy the movie.