I just realized that my Sailor Moon DVD did have the 1st season of Sailor Moon in it. It was titled "Sailor Moon R" for some reason -_-
The film is barely glitchy. It's all good. The audio is just fine, and everything is all normal.
Also, the back of the DVD case has descriptions of each season and movie.
Ok. I was just asking 'cause i've never heard of Toei releasing all 200 episodes on 1 DVD. It's usually the kind of trick bootleggers pull and the cramming process can damage the film data, resulting in it being glitchy.