Here is an update: Samsung asked that I buy a cleaning disk and run it to clean the optic reader. The cleaning disk didn't want to load and run either but I was able to get it to run - in Spanish language mode. I ran it several times. This did not change anything, disks still wouldn't play. I bought a few more Blu-ray movies that were on sale, they didn't want to load even after I ran the cleaning disk. Then I got an idea. I took the cleaning spray I bought for the screen of the LED TV and cleaned each disk. That helped a lot - even the new ones fresh out of the package that had no finger prints at all wouldn't play but they do now since I cleaned them - factory residues? Some disks are still persnickety though. I found that I can use the skip ahead button to skip to the ending time mark of the previews (they won't load and play and the disk will not load beyond the time mark) and then turn the player off. When I turn it back on, the disk will then load from that time mark to the disk menu. Sometimes it takes two or three tries but I have now watched all of the new disks I bought.
Now if I could get the stupid wireless router problem on my computer system fixed. Time Warner ran a modem check and said the modem is fine. I exchanged the router two weeks ago with no results. Today, on the advice of Linksys online tech support, I traded it in on the next higher model - they said that the model I had couldn't handle the speed of the modem when I upgraded my internet service - I did not change modems, Time Warner just "flipped a switch" to increase my speed (phone support with Linksys later told me that info was false, my old router was indeed capable of handling the speed). Anyway, this router won't work either. It has been determined that the modem port is defective, even though it works when wired directly to my computer. It just does not connect correctly to the router. The router itself works, I successfully connected to it with my wireless laptop. So, Monday I will exchange the modem. I'm not holding my breath that this will work but who knows?
Next up is troubleshooting my 4 1/2 year old Whirlpool Convertible Deepfreeze/Refrigerator. It died two weeks ago. And people wonder why I mostly use 60 year old appliances - they still work!