Has the firmware been updated recently? If not, try that first.
If so, what titles are you having a problem playing?
I purchased a BD p 1590 Blu Ray Samsung DVD Recorder from Costco about 9 months ago. The unit worked great for streaming Netflix, but sporadically "froze" DVD's when playing Netflix movies--I initially blamed Netflix. But a few months ago I purchased a DVD for my granddaughter and it would not play--I gave it to my daughter who I purchased the same DVD recorder for, and it played fine. I forgot about it because the other 3 DVD's she liked to watch played fine. Yesterday, I purchased 3 more DVD's for her from Walmart--2 of them showed the picture as gibberish, and one would not play at all. I am very dissatisfied with this product and want to know how to fix it.