I have a Sony BDP-S350 Blu Ray player that I purchased 3-4 years ago. This player has been used maybe 24 times at the most. A few weeks ago we went to watch our Game of Thrones Blu Ray and it wouldn't play. It just said "Unknown Disc" and wouldn't play. I decided to hook it up to the internet and get the latest firmware. It still wouldn't play the discs for some reason. I put them into my PS3 and they played fine. I figured it had something to do with the disc.
Fast forward to today. My daughters wanted to watch the Serenity blu-ray. I put it in and get the same "Unknown Disc" error. I had just watched this a few months ago and it worked fine. I decided to put in two other discs (Iron Man and Hellraiser) just to see if they would work and they wouldn't. I tried one final disc, Tangled and it worked. I once again hooked it up to the internet via ethernet cable to see if there was another update I could get and there was nothing.
Does anyone have any idea of what might be going on? I thought about contacting Sony but based on some searches, their answer to others was to send it in and for $112.00 they will fix it. I am not going to do that, I would just buy a new, non Sony one instead. I feel like taking this one out back and introducing it to my Louisville Slugger.