Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Two players skip "bad" sections of new DVDs

I bought this DVD player as a cheap second system. The first DVD I tried played perfectly, but the second kept skipping sections with the message that it was skipping over bad spots. Since the DVD was new, had no scratches and played perfectly on other players I assumed the player was defective and traded it for an identical player. The new player worked with that DVD, but with the very next DVD the problems were back. I'm returning the second Koss player today and looking for another brand.