PS3 Settings

[Furious911]

Hi guys, I am pretty new to Blu-ray and my PS3, haven't even had it 2 months (and already have 10 BDs with 10 more incoming) and my question is how do I know I have all the settings set correctly?

The reason I ask is because some BDs look absolutely gorgeous, like Cars where others look stunning sometimes but grainy/blocky in some parts sometimes.

Like in the Matrix Revolutions, there's parts where there's apparent blocky sections in the darker areas (specifically the cabinets in the foreground where the Oracle is talking to Neo in her kitchen) , but very apparent and almost like beyond my concept of how a BD should look, is this normal?

I got Transformers and Iron man in the mail yesterday and popped them in all excited and yes much stuff looks bad ass but sometimes the film doesn't seem smooth it looks grainy, that's what prompted me to wonder if I have my PS3 settings right, like there's settings for RGB or YcB or something like that, a bunch of stuff, is there a guide somewhere?



Thanks a lot fellas for any advice!