I have spotted a bug that crashes the PS3 consistently (tested several times) in one particular location.

When walking through Bthardamz Lower District (The Only Cure quest), just before the door for Bthardamz Arcanex there is a doorway that can be crossed in only one direction, towards Bthardamz Arcanex door. It's easily identifiable by a column of light coming from above, close to the archway. If instead of entering Bthardamz Arcanex you turn back, the game will crash, forcing a restart.

I have only tested this after I killed Orchendor and I was looting the place when I noticed this issue. I suppose very few people would have gone back in from the "wrong" end of the ruins, so I haven't found any reports of that occuring anywhere else... Is it just me or is it a bug?