My Samsung Blu-Ray player won't play Blu-Ray discs any more...what gives?

My Samsung BD-P1500 Blu-Ray player used to play DVDs and Blu-Ray discs with no problems for a good 2 years. But then last year, watching The Dark Knight on Blu-Ray, I noticed skipping and jerky frame jumps during certain scenes. I thought something was wrong with the disc. Then I noticed that same problem occurring on other Blu-Ray discs, again only during certain scenes. And then soon after, some Blu-Ray discs stopped playing altogether. The player would just spit it out during loading saying "This disc is cannot be played." However, DVDs still play fine. I read on some forums that I should try firmware updates. I did an update a month ago. It made it even worse. Now I get the "cannot be played" message on all my Blu-Ray discs! I looked for another firmware update to see if that would fix it, but apparently I have the latest. There are no further updates. What is this film geek supposed to do???