mkvmerge problem przy łączeniu plików

[c4ld3ra]

Witam, mam problem przy łaczeniu 2-óch filmów za pomoca mkvmerge, w gruncie rzeczy to plik powstaje z dwóch ale działa zawsze tylko pierwsza część tzn. mozna obejrzec ten który był dodany jako pierwszy.
W okienku "mkvmerge output" mam komunikat

mkvmerge v2.9.8 ('C'est le bon') built on Aug 19 2009 16:59:31
'/home/user/Wideo/cshot/1.mkv': Using the Matroska demultiplexer.
'/home/user/Wideo/cshot/2.mkv': Using the Matroska demultiplexer.
'/home/user/Wideo/cshot/1.mkv' track 1: Using the MPEG-4 part 10 (AVC) video output module.
'/home/user/Wideo/cshot/1.mkv' track 2: Using the AAC output module.
'/home/user/Wideo/cshot/2.mkv' track 1: Using the MPEG-4 part 10 (AVC) video output module.
'/home/user/Wideo/cshot/2.mkv' track 1: Extracted the aspect ratio information from the MPEG-4 layer 10 (AVC) video data and set the display dimensions to 1280/720.
'/home/user/Wideo/cshot/2.mkv' track 2: Using the AAC output module.
The file '/home/user/Wideo/cshot/3.mkv' has been opened for writing.
Appending track 2 from file no. 1 ('/home/user/Wideo/cshot/2.mkv') to track 2 from file no. 0 ('/home/user/Wideo/cshot/1.mkv').
Appending track 1 from file no. 1 ('/home/user/Wideo/cshot/2.mkv') to track 1 from file no. 0 ('/home/user/Wideo/cshot/1.mkv').
The cue entries (the index) are being written...
Muxing took 0 seconds.

zaś w okienku "Warning" :

Warning: The track number 1 from the file '/home/user/Wideo/cshot/2.mkv' can probably not be appended correctly to the track number 1 from the file '/home/user/Wideo/cshot/1.mkv':
 The codec's private data does not match (lengths: 50 and 39). Please make sure that the resulting file plays correctly the whole time. The author of this program will probably not give support for playback issues with the resulting file.

okienko error jest puste, jestem laikiem w tych sprawach tak mnie naszło coś aby zrobić mały mix.