Matroska mka single album file, what's foobar doing? Options

[detto87]

Hey there!

I have an Image.flac and Image.cue file + my front.jpg cover art in a folder and create my mka file like this:

CODE

mkvmerge Image.flac --cuesheet Image.cue --attach-file front.jpg -o Image.mka

It works like a charm and I can tag everything with foobar, from discnumber to album artist, titles and genre.

But I have a question: WHERE does foobar save the tags? If I extract the chapters file and the cuesheet from the mka again and take a look, there is no info whatsoever of the following: discnumber, total tracks, genre (iirc).
Does foobar alter the mka file itself instead of only the embedded cuesheet?
It DOES alter the cuesheet file, because I embedded a blank on (just the INDEX infos), and now (extracted) it contains tagged infos I entered in foobar. But not all as said before.

Any ideas?