Answer:
No the PS3 has different games and they are on Blu-Ray discs and while they number over 1000 based on a Gamespot count of the different PS3 games the number of PS2 games is over 3500 according to the Gamespot. Even is a rare case where the PS2 and PS3 game title is the same, the games are not exactly the same because the game designers take advantage of the higher capability of the PS3 game console. This means that Call of Duty 3 for the PS3 will be different and not exactly the same as the Call of Duty 3 (COD3) for the PS2 even though they have the same game title and were both first released in November 2006. That is not to say that the games are not very similar for the different game consoles. I am told that while they like playing the COD3 game on my PS3 they still enjoy playing the COD3 game I got them for there PS2 console. They really love playing the COD4 (Call of Duty 4: Modern Warfare) that is not available on the PS2 and want me to purchase MW2 (Modern Warfare 2). The PS3 does tend to get the new releases to the PS2 games and many are not being released for the PS2. Even though the PS3 is getting the new titles many of the older titles are not available for the PS3, although Call of Duty Classic was released for the PS3 in December 2009 in is more of an exception than the rule..