What type of CD do you need to burn ps3 games?

I was going to sell my 360 and wii games for a ps3 and i`m wondering what type of PS3 to get like,the 300$ one or a refurbished one.

ALSO,i`m wondering what kind of cd do you need to burn ps3 games onto because i`m short on cash. How much space CD's and does it have to be a blu ray CD?

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