Thanks. I'll go through both of them.
As I recall, legitimate WKRP disks may be "burn on demand", which can mean they're hard to read in many players. I've started avoiding those, after going through multiple copies of one title, trying to get one to read correctly. Turns out that they are NOT friendly to Blu-Ray players; only one of my DVD-only drives could rip the whole disk. If you have access to one, you might give it a try.
This sounds like I'm rather screwed, as is anyone trying to get a good copy of WKRP.
I have sleep issues and one trick that works is to leave old sitcoms like this playing on the TV as I fall asleep. (I also use a pillow speaker, so the sound doesn't bother my wife.) But if I just stick a DVD in, I find I wake up within 20 minutes of it ending in the middle of the night. I've seen sets with a bad disc here or there, but I'm on the 2nd disc and both of them have had trouble with the 8th episode on the disc. Since I don't see damage, I'm starting to suspect part of the problem is what you're telling me - or that these are pirate and just a crappy job. I realize a pirate can copy a set of discs exactly. I bought a set of Star Trek:The Next Generation DVDs that were almost indistinguishable - I don't remember the whole story, but I do remember something tipping me off it was a pirate set. At this point, I'm not sure what to do, since this WKRP set looks like all the others. I guess it's worth the cost of shipping to try another set, but it sounds like, with this title, I shouldn't expect much luck.