Basically any new blu-ray, you can not use AC3 audio because the cinavia watermark is preserved. Older blu-rays without cinavia protection are unaffected.
Even if I had kept my PS3 and jailbroken/hacked it, I don't think it's better than the HTPC I replaced it with. I never have to worry about my device not playing something, or the manufacturer removing functionality.
After updating my PS3's firmware, I could no longer play my blu-ray backups that I had ripped with AC3 audio.
I didn't hesitate. I sold my PS3 and bought parts to build an HTPC - and never looked back.
I don't regret the decision at all. Neither will you.
*facepalm*
Someone's going to go well beyond 5.6ghz using the 125MHz BCLK strap.
And they won't even need 57x multiplier.
An Ada exception is when a routine gets in trouble and says 'Beam me up, Scotty'.