FixMKVGaps only works on the Windows operating system. It has been tested on different versions since version 7, in 32 bits as well as in 64 bits.
It is recommended to install the file mkvmerge, included in the application mkvToolNix in order to be able to repair the . mkv files which have discontinuities of time codes. If this is not the case, one can analyze .mkv files but not fix them.
