I am using a wired connection, wireless would be insane with a 3d mvc remux.
Here is the media info for the problematic movie (First Avenger):
General
Unique ID : 173885902087280843508957849292693464553 (0x82D134E2030CC2FD0EE8F54A0AAA65E9)
Complete name : /Volumes/filme/Captain America The First Avenger (2011)/Captain.America.The.First.Avenger.2011.3D.MVC.SBS.bluray.remux.mkv
Format : Matroska
Format version : Version 2
File size : 37.6 GiB
Duration : 2h 4mn
Overall bit rate mode : Variable
Overall bit rate : 43.4 Mbps
Movie name : Captain America The First Avenger 3D
Encoded date : UTC 2016-01-02 14:27:57
Writing application : MakeMKV v1.9.8 darwin(x86-release)
Writing library : libmakemkv v1.9.8 (1.3.3/1.4.4) darwin(x86-release)
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Stereo High@L4.1 / High@L4.1
MultiView_Count : 2
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=1, N=12
Codec ID : V_MPEG4/ISO/AVC
Duration : 2h 4mn
Bit rate mode : Variable
Bit rate : 3 691 Kbps
Maximum bit rate : 30.6 Mbps
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) : 0.074
Stream size : 32.0 GiB (85%)
Language : English
Default : No
Forced : No
FromStats_SOURCE_ID : 001011
Audio #1
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Format profile : MA / Core
Mode : 16
Format settings, Endianness : Big
Codec ID : A_DTS
Duration : 2h 4mn
Bit rate mode : Variable / Constant
Bit rate : 512 Kbps / 1 509 Kbps
Channel(s) : 8 channels / 6 channels
Channel positions : Front: L C R, Side: L R, Back: L R, LFE / Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Frame rate : 93.750 fps (512 spf)
Bit depth : 24 bits
Compression mode : Lossless / Lossy
Stream size : 4.42 GiB (12%)
Title : Surround 7.1
Language : English
Default : Yes
Forced : No
FromStats_SOURCE_ID : 001100
Audio #2
ID : 3
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 2h 4mn
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
Frame rate : 31.250 fps (1536 spf)
Compression mode : Lossy
Stream size : 569 MiB (1%)
Title : Surround 5.1
Language : German
Default : No
Forced : No
FromStats_SOURCE_ID : 001101
Audio #3
ID : 4
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 2h 4mn
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
Frame rate : 31.250 fps (1536 spf)
Compression mode : Lossy
Stream size : 569 MiB (1%)
Title : Surround 5.1
Language : English
Default : No
Forced : No
FromStats_SOURCE_ID : 001102
Text #1
ID : 5
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2h 2mn
Bit rate : 3 023 bps
Count of elements : 2458
Stream size : 26.6 MiB (0%)
Language : German
Default : No
Forced : No
FromStats_SOURCE_ID : 001201
Text #2
ID : 6
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2h 0mn
Bit rate : 38 bps
Count of elements : 38
Stream size : 339 KiB (0%)
Language : German
Default : Yes
Forced : No
FromStats_SOURCE_ID : 001201
Text #3
ID : 7
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2h 2mn
Bit rate : 2 744 bps
Count of elements : 2408
Stream size : 24.1 MiB (0%)
Language : English
Default : No
Forced : No
FromStats_SOURCE_ID : 001202
Text #4
ID : 8
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 8s 821ms
Bit rate : 4 979 bps
Count of elements : 10
Stream size : 53.6 KiB (0%)
Language : English
Default : No
Forced : No
FromStats_SOURCE_ID : 001202
Text #5
ID : 9
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2h 2mn
Bit rate : 3 074 bps
Count of elements : 2732
Stream size : 27.0 MiB (0%)
Language : English
Default : No
Forced : No
FromStats_SOURCE_ID : 001207
Menu
00:00:00.000 : en:Chapter 01
00:08:12.158 : en:Chapter 02
00:14:56.812 : en:Chapter 03
00:24:21.543 : en:Chapter 04
00:30:39.128 : en:Chapter 05
00:38:39.859 : en:Chapter 06
00:45:52.166 : en:Chapter 07
00:51:58.156 : en:Chapter 08
00:57:55.638 : en:Chapter 09
01:03:59.293 : en:Chapter 10
01:12:22.588 : en:Chapter 11
01:19:10.662 : en:Chapter 12
01:28:27.051 : en:Chapter 13
01:33:53.002 : en:Chapter 14
01:42:20.342 : en:Chapter 15
01:50:45.055 : en:Chapter 16
01:53:46.319 : en:Chapter 17
`
and here for the perfectly playing movie (Winter soldier):
`General
Unique ID : 171301289885984040078643519189925548787 (0x80DF6DA9AE040AE41273F2C81B20D2F3)
Complete name : /Volumes/filme/Captain America The Winter Soldier (2014)/Captain.America.The.Winter.Soldier.2014.1080p.3D.MVC.SBS.DTSHD.7.1-PHX.mkv
Format : Matroska
Format version : Version 2
File size : 39.5 GiB
Duration : 2h 15mn
Overall bit rate mode : Variable
Overall bit rate : 41.6 Mbps
Movie name : MARVEL’S CAPTAIN AMERICA: THE WINTER SOLDIER - BLU-RAY 3D
Encoded date : UTC 2015-09-06 20:04:55
Writing application : MakeMKV v1.9.5 win(x64-release)
Writing library : libmakemkv v1.9.5 (1.3.0/1.4.1) win(x64-release)
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Stereo High@L4.1 / High@L4.1
MultiView_Count : 2
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2h 15mn
Bit rate mode : Variable
Maximum bit rate : 35.0 Mbps
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
Language : English
Default : No
Forced : No
Audio #1
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Format profile : MA / Core
Mode : 16
Format settings, Endianness : Big
Codec ID : A_DTS
Duration : 2h 15mn
Bit rate mode : Variable / Constant
Bit rate : Unknown / 1 509 Kbps
Channel(s) : 8 channels / 6 channels
Channel positions : Front: L C R, Side: L R, Back: L R, LFE / Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Frame rate : 93.750 fps (512 spf)
Bit depth : 24 bits
Compression mode : Lossless / Lossy
Title : Surround 7.1
Language : English
Default : Yes
Forced : No
Audio #2
ID : 3
Format : DTS
Format/Info : Digital Theater Systems
Mode : 16
Format settings, Endianness : Big
Codec ID : A_DTS
Duration : 2h 15mn
Bit rate mode : Constant
Bit rate : 1 509 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Frame rate : 93.750 fps (512 spf)
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.43 GiB (4%)
Title : Surround 5.1
Language : English
Default : No
Forced : No
Audio #3
ID : 4
Format : DTS
Format/Info : Digital Theater Systems
Format profile : HRA / Core
Mode : 16
Format settings, Endianness : Big
Codec ID : A_DTS
Duration : 2h 15mn
Bit rate mode : Constant
Bit rate : 2 046 Kbps / 1 509 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Frame rate : 93.750 fps (512 spf)
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.94 GiB (5%)
Title : Surround 5.1
Language : German
Default : No
Forced : No
Audio #4
ID : 5
Format : DTS
Format/Info : Digital Theater Systems
Mode : 16
Format settings, Endianness : Big
Codec ID : A_DTS
Duration : 2h 15mn
Bit rate mode : Constant
Bit rate : 1 509 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Frame rate : 93.750 fps (512 spf)
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.43 GiB (4%)
Title : Surround 5.1
Language : German
Default : No
Forced : No
Text #1
ID : 6
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : English
Default : No
Forced : No
Text #2
ID : 8
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : German
Default : No
Forced : No
Text #3
ID : 10
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : English
Default : No
Forced : No
Text #4
ID : 12
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Language : German
Default : No
Forced : No
Menu
00:00:00.000 : en:Chapter 01
00:03:28.666 : en:Chapter 02
00:13:31.727 : en:Chapter 03
00:17:57.868 : en:Chapter 04
00:22:25.302 : en:Chapter 05
00:33:20.415 : en:Chapter 06
00:41:27.276 : en:Chapter 07
00:51:37.302 : en:Chapter 08
00:58:23.958 : en:Chapter 09
01:07:40.347 : en:Chapter 10
01:16:22.202 : en:Chapter 11
01:24:43.078 : en:Chapter 12
01:32:17.698 : en:Chapter 13
01:37:06.612 : en:Chapter 14
01:49:13.088 : en:Chapter 15
01:55:03.730 : en:Chapter 16
02:01:11.055 : en:Chapter 17
02:06:22.241 : en:Chapter 18
`