Violins or violence aside, I find the DVD transcripted dialogue problematic. One example in particular comes to mind:
In a DVD I have of The Doomsday Machine the transcripted text has Spock saying something like (I recall the error more clearly than the exact dialog line):
"It [the planet killer] seems to be drawn to our power cells."
While my not-at-all-Vulcan ears clearly hear:
"It seems to be drawn to our power nacelles." [i.e. - the two upper cylindrical projections aft of the main saucer disc.]
Not a big deal I suppose, but how much more difficult would it have been to get it right.
Actually, it's "the energy generated by our power nacelles seems to attract it."