JP BD which I have bought seems has a worse quality though it has a larger size.But it have a lossless audio the same as the JP dvd. source: JP BD:http://hdroad.org/details.php?id=49084 US BD:http://asiandvdclub.org/details.php?id=38300 Encoding Settings: crf=16.0, mbtree=1, qcomp=0.80, fgo=0, aq=3:0.75 Audio1: Japanese - 2.0 16bit 48kHz FLAC Audio2: English - 5.1 16bit 48kHz FLAC Audio5: English - 2.0 32bit 48kHz AC3(commentary,only in EP3) subtitle: English PGS PP:deband Comparison JP BD(up) vs US BD(down)   Quote: General Unique ID : 190691244556631132753257344646904847451 (0x8F75CC3CC755583AA0967530A6409C5B) Complete name : D:\\HI10P ainme\\\[philosophy-raws\]\[Basilisk\]\\\[philosophy-raws\]\[Basilisk\]\[01\]\[BDRIP\]\[Hi10P FLAC\]\[1920X1080\].mkv Format : Matroska Format version : Version 4 / Version 2 File size : 1.36 GiB Duration : 24mn 8s Overall bit rate mode : Variable Overall bit rate : 8 040 Kbps Encoded date : UTC 2013-07-23 12:19:43 Writing application : mkvmerge v6.3.0 ('You can't stop me!') built on Jul 19 2013 16:27:38 Writing library : libebml v1.3.0 + libmatroska v1.4.1 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High [10@L5.0](mailto:10@L5.0) Format settings, CABAC : Yes Format settings, ReFrames : 8 frames Codec ID : V\_MPEG4/ISO/AVC Duration : 24mn 8s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 10 bits Scan type : Progressive Writing library : x264 core 136 r2348+704+51 d1baef6 tMod \[10-bit@4:2:0 X86\_64\] Encoding settings : cabac=1 / ref=8 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=10 / psy=1 / fade\_compensate=0.00 / psy\_rd=0.40:0.10 / mixed\_ref=1 / me\_range=32 / chroma\_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast\_pskip=0 / chroma\_qp\_offset=-3 / threads=12 / lookahead\_threads=3 / sliced\_threads=0 / nr=0 / decimate=0 / interlaced=0 / bluray\_compat=0 / constrained\_intra=0 / fgo=0 / bframes=12 / b\_pyramid=2 / b\_adapt=2 / b\_bias=0 / direct=3 / weightb=1 / open\_gop=0 / weightp=2 / keyint=infinite / keyint\_min=1 / scenecut=40 / intra\_refresh=0 / rc\_lookahead=72 / rc=crf / mbtree=1 / crf=16.0000 / qcomp=0.80 / qpmin=0:0:0 / qpmax=81:81:81 / qpstep=4 / ip\_ratio=1.40 / aq=3:0.75 / aq-sensitivity=10.00 / aq-factor=1.00:1.00:1.00 / aq2=0 / aq3=0 Language : English Default : Yes Forced : No Audio [\#1](//www.nyaa.se/?page=view&tid=1) ID : 2 Format : FLAC Format/Info : Free Lossless Audio Codec Codec ID : A\_FLAC Duration : 24mn 8s Bit rate mode : Variable Channel count : 2 channels Sampling rate : 48.0 KHz Bit depth : 16 bits Delay relative to video : 709ms Writing library : libFLAC 1.3.0 (UTC 2013-05-26) Language : Japanese Default : Yes Forced : No Audio [\#2](//www.nyaa.se/?page=view&tid=2) ID : 3 Format : FLAC Format/Info : Free Lossless Audio Codec Codec ID : A\_FLAC Duration : 24mn 8s Bit rate mode : Variable Channel count : 6 channels Sampling rate : 48.0 KHz Bit depth : 16 bits Writing library : libFLAC 1.3.0 (UTC 2013-05-26) Language : English Default : No Forced : No Text ID : 4 Format : PGS Muxing mode : zlib Codec ID : S\_HDMV/PGS Codec ID/Info : The same subtitle format used on BDs/HD-DVDs Language : English Default : Yes Forced : No