Periodically throughout a single episode, the disc will skip backwards, looping a (usually short) stretch of footage which can't be surpassed by fast-forwarding, so one has to skip to the next chapter stop and rewind to where the looping ends.
I had this problem with the previous DVD release, too: I rented it from Blockbuster and checked it out of the library, and both copies had this flaw.
Anyone else have this issue? Anyone know what causes it? How to get rid of the problem?