Quote:
Originally Posted by sneaker_ger
Mkvmerge has 2 different --append-mode settings. It's common for the default setting to create audio or video gaps. You can read in the docs about them:
https://mkvtoolnix.download/doc/mkvmerge.html
It says video is 48m39s, audio is 48m38s. If you use the default append mode a 1 second audio gap is expected. (Feature, not bug.) |
But how do I tell MKVToolnix to use TRACK mode instead? I am using the GUI. Should I only use command lines for that?
Yeah, this is a case of a DVD (VOB...) splitted into 2 different MKVs by MAKEMKV, so when appending them I need to use TRACK instead of "FILE" (see below), otherwise this problem will happen.
These splitted MKVs are 2 parts of a single content, not two independent recordings from the same DVD that I wanted to put together, yet were always apart from each other.
The only reason MAKEMKV created 2 MAKEMKVs is because the DVD was created with 2 options: WATCH ALL (which in the end just put them together) and watch 1st half of the match and 2nd half (it's a broadcast from a sports event).
--append-mode mode
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Determines how timestamps are calculated when appending files. The parameter mode can have two values: 'file' which is also the default and 'track'.
When mkvmerge appends a track (called 'track2_1' from now on) from a second file (called 'file2') to a track (called 'track1_1') from the first file (called 'file1') then it has to offset all timestamps for 'track2_1' by an amount. For 'file' mode this amount is the highest timestamp encountered in 'file1' even if that timestamp was from a different track than 'track1_1'. In track mode the offset is the highest timestamp of 'track1_1'.
Unfortunately mkvmerge cannot detect which mode to use reliably. Therefore it defaults to 'file' mode. 'file' mode usually works better for files that have been created independently of each other; e.g. when appending AVI or MP4 files. 'track' mode may work better for sources that are essentially just parts of one big file, e.g. for VOB and EVO files.
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