Based on the filename VERONICA_MARS_SEASON_1_DISC2_t01.mkv alone it's impossible to guess the correct match. If you process discs in order you know the first file maps to s01e01 and you could just increment from the last episode on the disc for the next one... so a "batch" interface to process a ...

They do map 1:1, what makes you think otherwise? The problem is that the files from a SEASON ONE disc two are matching random episodes from SEASON TWO or DISC ONE. The correct mapping should be something like (I didn't check the order on the disc itself): VERONICA_MARS_SEASON_1_DISC2_t02.mkv ...

Most of my Blu-ray TV series aren't matching correctly... here's just one example: VERONICA_MARS_SEASON_1_DISC2_t02.mkv -> Veronica Mars.S01E02.Credit Where Credit's Due.mkv VERONICA_MARS_SEASON_1_DISC2_t04.mkv -> Veronica Mars.S02E01.Normal is the Watchword.mkv VERONICA_MARS_SEASON_1_DISC2_t03.mkv ...