I bought this DVD about two years ago and it worked fine. Today, I decided to watch it again and for some odd reason it wouldn't load using the same DVDP I used. So I tried my DVDROM and DVD burner and it still wouldn't load. I just find it odd that all of a sudden the the DVD disc no longer works. .. and yes, I have tried cleaning the disc several times but it really didn't need any cleaning at all. Has anyone had this happen to them?