patch.bat

@echo off
for /f "delims=|" %%a in ('where mkvmerge') do set mkvmerge="%%a"
if %mkvmerge%.==. set mkvmerge="C:\Program Files (x86)\MKVtoolnix\mkvmerge.exe"

set trailer=[fong] Kanashimi no Belladonna - trailer
set movie=[fong] Kanashimi no Belladonna [R2JDVDrip.10bit.ENsubs]
set bonus=[fong] Kanashimi no Belladonna - bonus scene

%mkvmerge% --engage no_variable_data -o "%trailer% v2.mkv" "%trailer%.mkv" --split parts:-00:02:57.094
%mkvmerge% --engage no_variable_data -o "%bonus%.tmp.mkv" "%trailer%.mkv" --attachments 3,7 -D -A -S -T --no-chapters "%movie%.mkv" --split parts:00:02:57.094-
%mkvmerge% --engage no_variable_data -o "%bonus%.mkv" "%bonus%.tmp.mkv" --language 0:eng patch.ass

del/q "%bonus%.tmp.mkv"