There are no burned in subs, no menus, and a folder of cover art (that may have been added later by a 3rd party).
I don't know the origin beyond that and the quality is not terrible (mind you our new release is much better).
Btw, I haven't forgotten the subtitles. I'm about 25% of the way through fixing them, ugh, it sucks. I'll get back to them at some point.
I'm thinking perhaps we should consider a re-release that just removes the titles completely.