Playback of some mkv fails, e.g. after 5min on Samsung A.

Have played around with mkv playback, and most of the files plays okay for 4 to 15 min, but then suddenly breaks and tv starts to play the next video file.
1. It is always at the same time for a given file, e.g. the Pixar Short - Presto movie breaks after 4:48. - Same result after a reboot and setting 4CPU for trasncoding.
2. Have tested the file with VLC player and finds no defects at given time. "Don't know any other way to test the file, for this type of defect"

Running SerViiO 0.5.2 <-> Samsung A - LE55A966

--- File info ---
D:\Program Files (x86)\Serviio\lib>ffmpeg.exe -i "d:\Multi Media\Movies\HD\Pixar Short - Presto (2008 1080p x264).mkv"
FFmpeg version UNKNOWN, Copyright (c) 2000-2011 the FFmpeg developers
built on Jan 10 2011 21:46:22 with gcc 4.4.2
configuration: --enable-static --disable-shared --disable-shared --disable-ffplay --disable-ffserver --enable-memalign
-hack --enable-libmp3lame --arch=x86 --enable-runtime-cpudetect --enable-w32threads --target-os=mingw32 --cross-prefix=i
686-mingw32-
libavutil 50.36. 0 / 50.36. 0
libavcore 0.16. 0 / 0.16. 0
libavcodec 52.108. 0 / 52.108. 0
libavformat 52.92. 0 / 52.92. 0
libavdevice 52. 2. 3 / 52. 2. 3
libavfilter 1.72. 0 / 1.72. 0
libswscale 0.12. 0 / 0.12. 0
[matroska,webm @ 015fbcc0] Estimating duration from bitrate, this may be inaccurate

Seems stream 0 codec frame rate differs from container frame rate: 47.95 (20000000/417083) -> 23.98 (20000000/834166)
Input #0, matroska,webm, from 'd:\Multi Media\Movies\HD\Pixar Short - Presto (2008 1080p x264).mkv':
Metadata:
title : Pxar short - Presto (2008)
Duration: 00:05:15.29, start: 0.000000, bitrate: 640 kb/s
Stream #0.0(eng): Video: h264, yuv420p, 1920x1080, PAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc
Stream #0.1(eng): Audio: ac3, 48000 Hz, 5.1, s16, 640 kb/s
Metadata:
title : AC3-EX
At least one output file must be specified

[Illico]

Could you check video bitrate at 4:48 with this tool?

Hi
I have tried the tool and I have noticed this.
1. High peak in the beginning doesn't raise any problems.
2. Can't match the exact time - the tool claims video length is 7:34... but TV and VLC says 5:15??
3. If the timeline on VLC is correct, it looks like no peaks around error time, at least not as big as the one in the beginning.
4. I have tested another file that also fails, but this files never cros the 15000 kbps at the point of failure.

Note: I am running Win7 x64 - Serviio 0.5.2 <-> LE55A.