Yes there is one layer change spot on every dual-layer DVD movie. There will usually be a short 1sec or so pause at that point, thats completely normal. Some high-end expensive model DVD players have a big buffer to eliminate the pause, but its only one second for a 2hour movie so I don't really mind it.
No. It goes into this mosaic type mode like the disc was dirty. But it is starting to do it more often and even onnewer discs. Would it be something on the lense? Is there a good way to clean the lense without scratching it? It is getting a little frustrating. Thanks for your help.