series disc issue

I own the Buffy collection. And I don’t understand this but only one episode shows up on each disc. Which actually never use to happen. Now all of a sudden it does.
It’s suppose to have 4 episodes on each disc but only one out of the 4 show up. I tested the other discs and they do the same thing. Anyone know what I can do to fix this????
Answer #1
http://www.google.com?t=6266138&highlight= I mean is disk scratched what exactly happens when you try to play them
Answer #2
helpdesk is the job for this
Answer #3
Clean the disks and try in another player, including your PC or laptop..
Answer #4
Try ripping the discs using AnyDVD/CloneDVD.