If you're in the market for a Blu Ray Player, you obviously have a good idea about what they are. You will know that they support 1080i resolution which is true Hi Def. You may be aware about the wonderful, deep, deep 7.1 channels of surround sound. And you are probably aware that a decent Blu Ray player is going to set you back a few bob. That's not to say that if you're in the market for one, there isn't a good deal out there, but a few things to bear in mind first. Due to technology advancing quicker than ever, you need to decide whether or not you want to make your equipment future proof. This could get complicated so we'll just give you the simples. In terms of Blu Ray, its all about the Profile.