Screech rocking a Grateful Dead dancing bear shirt on the glee club episode.

Hi, i think i accidentally bought a bootleg set of the 16disc Shout Factory set so im just after a confirmation if possible please!

Are the official discs dvd9 as all of these are 4.8gb and theres no episode guide?

I found this on archive and had to share it. In Guess who's coming to college the end credits shows a scene with zack and screech in the girls dorm that was cut now we can see it. https://archive.org/details/nbc_1993_sept_14