looking for a lightweight program to edit mkv files?

I'm trying to edit a 12G 1080p mkv file and the program I'm using now, SolviegMM video splitter, crashes with a runtime error when I try to load it, so I am looking for another lightweight mkv editor. The thing I liked about solvieg is that it didn't re-encode the file so there was no quality loss, which is something I always struggle with because I want to produce something of 1080p quality.


Any ideas?

 

mkvmerge

-http://www.bunkus.org/videotools/mkvtoolnix/

installer

-http://www.bunkus.org/videotools/mkvtoolnix/win32/mkvtoolnix-unicode-5.5.0-setup.exe

portable

-http://www.bunkus.org/videotools/mkvtoolnix/win32/mkvtoolnix-unicode-5.5.0.7z

guide

-http://www.bunkus.org/videotools/mkvtoolnix/doc/mkvmerge-gui.html