Why will some mkv's play and others not?

WD Legacy Products My Book Live Duo
1

Hello…

I have a MBLD 6 TB connected to my Samsung serie 6 TV over network. My MBLD is updated to the newest firmware and still I notice that some mkv’s will not play and others will!?!?!

Ex:

This will play:

General
Unique ID : 210530611656510607930803008566420530635 (0x9E62B88E359C0879A85F463E55BF65CB)
Complete name :  
Format : Matroska
Format version : Version 2
File size : 5.95 GiB
Duration : 1h 42mn
Overall bit rate : 8 318 Kbps
Encoded date : UTC 2012-05-11 04:46:07
Writing application : mkvmerge v5.3.0 ('I could have danced') built on Feb 9 2012 10:38:07
Writing library : libebml v1.2.3 + libmatroska v1.3.0
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 12 frames
Codec ID : V_MPEG4/ISO/AVC
Bit rate : 6 800 Kbps
Width : 1 280 pixels
Height : 534 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Variable
Original frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.415
Writing library : x264 core 124 r2197 69a0443
Encoding settings : cabac=1 / ref=12 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=umh / subme=10 / psy=1 / psy_rd=1.10:0.00 / mixed_ref=1 / me_range=32 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=18 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=8 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=240 / rc=2pass / mbtree=1 / bitrate=6800 / ratetol=1.0 / qcomp=0.70 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Language : English
Default : Yes
Forced : No
Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 1h 42mn
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 : 1.08 GiB (18%)
Language : English
Default : Yes
Forced : No
Text
ID : 3
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
Menu
00:00:00.000 : en:00:00:00.000
00:04:04.744 : en:00:04:04.744
00:08:02.315 : en:00:08:02.315
00:13:43.364 : en:00:13:43.364
00:17:10.029 : en:00:17:10.029
00:25:02.876 : en:00:25:02.876
00:30:20.902 : en:00:30:20.902
00:37:03.430 : en:00:37:03.430
00:44:58.529 : en:00:44:58.529
00:50:51.674 : en:00:50:51.674
00:55:50.013 : en:00:55:50.013
01:00:18.740 : en:01:00:18.740
01:06:13.511 : en:01:06:13.511
01:11:18.816 : en:01:11:18.816
01:15:50.963 : en:01:15:50.963
01:20:46.884 : en:01:20:46.884
01:25:06.977 : en:01:25:06.977
01:32:40.305 : en:01:32:40.305

But this will not play:

General
Unique ID : 248883579062541514136836087924404302660 (0xBB3D3BD7952EFBA4B115ACFDAE7CB344)
Complete name :  
Format : Matroska
Format version : Version 2
File size : 6.45 GiB
Duration : 1h 45mn
Overall bit rate : 8 725 Kbps
Encoded date : UTC 2012-09-06 16:59:07
Writing application : mkvmerge v5.3.0 ('I could have danced') built on Feb 9 2012 10:38:07
Writing library : libebml v1.2.3 + libmatroska v1.3.0
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 9 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 45mn
Bit rate : 7 200 Kbps
Width : 1 280 pixels
Height : 694 pixels
Display aspect ratio : 1.85:1
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.338
Stream size : 5.21 GiB (81%)
Writing library : x264 core 125 r2208 d9d2288
Encoding settings : cabac=1 / ref=9 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=umh / subme=10 / psy=1 / psy_rd=1.10:0.05 / mixed_ref=1 / me_range=48 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-3 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=8 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=240 / rc=2pass / mbtree=1 / bitrate=7200 / ratetol=1.0 / qcomp=0.70 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.20 / aq=1:0.95
Language : English
Default : Yes
Forced : No
Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 1h 45mn
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 : 16 bits
Compression mode : Lossy
Stream size : 1.12 GiB (17%)
Language : English
Default : Yes
Forced : No
Text
ID : 3
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
Menu
00:00:00.000 : en:00:00:00.000
00:06:09.578 : en:00:06:09.578
00:11:27.478 : en:00:11:27.478
00:16:58.809 : en:00:16:58.809
00:22:36.230 : en:00:22:36.230
00:31:24.633 : en:00:31:24.633
00:37:36.421 : en:00:37:36.421
00:42:43.019 : en:00:42:43.019
00:48:55.850 : en:00:48:55.850
00:53:58.235 : en:00:53:58.235
00:59:27.773 : en:00:59:27.773
01:05:52.782 : en:01:05:52.782
01:11:56.312 : en:01:11:56.312
01:19:50.619 : en:01:19:50.619
01:27:57.063 : en:01:27:57.063
01:35:30.683 : en:01:35:30.683

Can anyone see the problem ?

2

I know that Samsung TV’s doesn’t fully support the dlna server on the MBLD, but aside from that I don’t know why it would play some .mkv files and not others.