What's the difference between playstation 3 blue-Ray and just a blue ray player?

the ps3 is considered the gold standard of blu-ray players by which all others are judged
it has the fastest processor , upgradeable firmware simply by updating the ps3 and uses blu-ray live which connects online through the ps3 internet connection to provide extras available online only and has true high definition and unprocessed audio capabilities so it will give 5.1 , 7.1 or even 10.1 audio if your lucky enough to be able to afford that type of sound system

on top of all that you get a great game console and can store music , video and photos on the user upgradeable hard drive

"Here are the advantages of each:

PS3
Better load times
Better fast scan (1.5x with sound)
Faster repsonse to remote
Plays CDs and SACDs
Internet connectivity
Almost like a mutlimedia hub
Memory stick slots
USB connectivity
Plays games! (duh, it's a gaming console)
Above all, it is almost infinitely upgradeable and expandable like a computer (which it essentially is) and with all the ways to connect other devices to it via USB, wifi, ethernet, and Bluetooth.

SONY BDP-S1
Beautiful looking piece of A/V equipment
Builit like a tank
The best in picture quality: the contrast, color, depth, and resolution are all well above the PS3
Upconverts standard DVDs beautifully"