Ok, I actually got it to work. Tried all of the solutions on here and none worked until I saw the boil your disc strategy. I didn't actually boil my disc but i ran it under REALLY hot water for about a minute, dried off with a thin cloth, and popped it in my Ps3. Worked instantly. Where I thought it was clean before it must not really have been.
I think it has something to do with the update, because the game works fine when it's not connected to the internet, please, release a new patch! Whatever you did with the newer patches, is screwing the game up!
Sorce (Game wouldn't read, I tried everything, diconnected from the internet and "wha-la" it loaded and played just fine!)
It's the stupid patch!! Sony Santa Monica needs to fix it!! This is total BS!!
I'm not erasing my saved data nor am I going to boil my **** disk!
Fix it! Sony Santa Monica knows **bleep** well the patch doesn't load properly, they are screwing with the Last of Us Demo we all want to try out.
Edit: removed profanity
I would like to take this opportunity to thank gypsy for making this thread, never following up on it or communicating the issue to either side and completely abandoning and ignoring the issue. I think this can officially be filed under pdafas (public display of affection for appearances sake).
I traded my disc in for a new one at the retailer once and then traded that SECOND new copy in for barely $15 credit a month later since that copy didn't work either.
I'm so sick of getting ripped off by million dollar companies with ZERO concern or skill in customer service.