Panasonic DVD-RV30 DVD Player
I returned mine today.
I don't know if it's common with this model or if I just got a bad one.  In either case, I returned mine today.  On several different movies, the picture and sound would just start to break up.  I had it for a week or two.  At first, I thought it was the movie - but it continued to happen too many times.  I also have an older Panasonic A210 which doesn't have this problem (on the same movies).  I'll most likely buy a different one from Amazon.com.  They've always offered great service and were very helpful in providing me information to return this item.  They even sent the UPS label out to me, pre-paid for the return.