makemkvcon = MakeMkvCon(["stream", "disc:%s" % disc_number])
for key, line in makemkvcon:
if key == "MSG" and line[0] == "4500":
makemkvcon = MakeMkvCon(["stream", "disc:%s" % disc_number])
for key, line in makemkvcon:
if key == "MSG" and line[0] == "4500":