Thanks for your help.
The --cuesheet option is indeed used to create the matroska chapters. But that's not the problem.
My mka file has 3 parts inside:
- the audio file "Image.flac"
- the cuesheet file "Image.cue"
- the chapters (created by matroska, not me)
The chapters were created automatically by matroska and looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<!-- <!DOCTYPE Tags SYSTEM "matroskatags.dtd"> -->
<Chapters>
<EditionEntry>
<EditionFlagHidden>0</EditionFlagHidden>
<EditionFlagDefault>0</EditionFlagDefault>
<EditionUID>550544517</EditionUID>
<ChapterAtom>
<ChapterUID>1693127076</ChapterUID>
<ChapterTimeStart>00:00:00.000000000</ChapterTimeStart>
<ChapterFlagHidden>0</ChapterFlagHidden>
<ChapterFlagEnabled>1</ChapterFlagEnabled>
<ChapterPhysicalEquiv>20</ChapterPhysicalEquiv>
<ChapterDisplay>
<ChapterString> - </ChapterString>
<ChapterLanguage>eng</ChapterLanguage>
</ChapterDisplay>
<ChapterAtom>
<ChapterUID>1791353234</ChapterUID>
<ChapterTimeStart>00:00:00.000000000</ChapterTimeStart>
<ChapterFlagHidden>1</ChapterFlagHidden>
<ChapterFlagEnabled>1</ChapterFlagEnabled>
<ChapterPhysicalEquiv>10</ChapterPhysicalEquiv>
<ChapterDisplay>
<ChapterString>INDEX 01</ChapterString>
<ChapterLanguage>eng</ChapterLanguage>
</ChapterDisplay>
</ChapterAtom>
</ChapterAtom>
<ChapterAtom>
<ChapterUID>2545736877</ChapterUID>
<ChapterTimeStart>00:04:18.666666666</ChapterTimeStart>
<ChapterFlagHidden>0</ChapterFlagHidden>
<ChapterFlagEnabled>1</ChapterFlagEnabled>
<ChapterPhysicalEquiv>20</ChapterPhysicalEquiv>
<ChapterDisplay>
<ChapterString> - </ChapterString>
<ChapterLanguage>eng</ChapterLanguage>
</ChapterDisplay>
<ChapterAtom>
<ChapterUID>721132165</ChapterUID>
<ChapterTimeStart>00:04:18.666666666</ChapterTimeStart>
<ChapterFlagHidden>1</ChapterFlagHidden>
<ChapterFlagEnabled>1</ChapterFlagEnabled>
<ChapterPhysicalEquiv>10</ChapterPhysicalEquiv>
<ChapterDisplay>
<ChapterString>INDEX 01</ChapterString>
<ChapterLanguage>eng</ChapterLanguage>
</ChapterDisplay>
</ChapterAtom>
</ChapterAtom>
<ChapterAtom>
<ChapterUID>1325760386</ChapterUID>
<ChapterTimeStart>00:08:06.133333333</ChapterTimeStart>
<ChapterFlagHidden>0</ChapterFlagHidden>
<ChapterFlagEnabled>1</ChapterFlagEnabled>
<ChapterPhysicalEquiv>20</ChapterPhysicalEquiv>
<ChapterDisplay>
<ChapterString> - </ChapterString>
<ChapterLanguage>eng</ChapterLanguage>
</ChapterDisplay>
<ChapterAtom>
<ChapterUID>2241010850</ChapterUID>
<ChapterTimeStart>00:08:06.133333333</ChapterTimeStart>
<ChapterFlagHidden>1</ChapterFlagHidden>
<ChapterFlagEnabled>1</ChapterFlagEnabled>
<ChapterPhysicalEquiv>10</ChapterPhysicalEquiv>
<ChapterDisplay>
<ChapterString>INDEX 01</ChapterString>
<ChapterLanguage>eng</ChapterLanguage>
</ChapterDisplay>
</ChapterAtom>
</ChapterAtom>
<ChapterAtom>
<ChapterUID>3133706427</ChapterUID>
<ChapterTimeStart>00:12:01.960000000</ChapterTimeStart>
<ChapterFlagHidden>0</ChapterFlagHidden>
<ChapterFlagEnabled>1</ChapterFlagEnabled>
<ChapterPhysicalEquiv>20</ChapterPhysicalEquiv>
<ChapterDisplay>
<ChapterString> - </ChapterString>
<ChapterLanguage>eng</ChapterLanguage>
</ChapterDisplay>
<ChapterAtom>
<ChapterUID>2576452256</ChapterUID>
<ChapterTimeStart>00:12:01.960000000</ChapterTimeStart>
<ChapterFlagHidden>1</ChapterFlagHidden>
<ChapterFlagEnabled>1</ChapterFlagEnabled>
<ChapterPhysicalEquiv>10</ChapterPhysicalEquiv>
<ChapterDisplay>
<ChapterString>INDEX 01</ChapterString>
<ChapterLanguage>eng</ChapterLanguage>
</ChapterDisplay>
</ChapterAtom>
</ChapterAtom>
</EditionEntry>
</Chapters>
My "Image.cue" BEFORE the merging (outside of the mka):
FILE "Image.mka" WAVE
TRACK 01 AUDIO
INDEX 01 00:00:00
TRACK 02 AUDIO
INDEX 01 04:18:50
TRACK 03 AUDIO
INDEX 01 08:06:10
TRACK 04 AUDIO
INDEX 01 12:01:72
and AFTER the merging (inside the mka) and tagging via foobar:
PERFORMER "Artist"
TITLE "AlbumTitle"
FILE "Image.mka" WAVE
TRACK 01 AUDIO
TITLE "song1"
INDEX 01 00:00:00
TRACK 02 AUDIO
TITLE "song2"
INDEX 01 04:18:50
TRACK 03 AUDIO
TITLE "song3"
INDEX 01 08:06:10
TRACK 04 AUDIO
TITLE "song4"
INDEX 01 12:01:72
But I tagged more: genre, album artist, discnumber, total discnumber, total tracks, year.
Where the heck does foobar save this?