Bootleg-esque kind of stuff!
I just remembered a high school friend who bought the cheap pre-recorded cassettes. I'm pretty sure these were Rush albums I'm remembering. Bootleg-esque but actually official releases. They didn't want to waste a second of blank tape at the end of one of the sides so they faded a song out and faded it back in on side 2. And the time that it was fading out, flipping the tape, and fading back in was lost. They didn't rewind the source to the dubbing machine a bit before starting side 2. Even most bootleggers weren't this trashy!
Yes! I remember those with cassettes, also. They always wanted Side 1 to be longer than Side 2. I remember they flip-flopped "Thank You" for "Heartbreaker" on the Led Zeppelin II cassette for one example. If I remember they completely flip-flopped the entire sides for Zeppelin's first album.
My favorite was buying the double cassette release for Kiss Alive II. I got home and the second cassette was labeled as Kiss Alive II, but the music was actually Donna Summer.
Sorry, I'm getting off topic.