Why's my Kingdom Hearts:COM 'unsupported data' (i did the whole add-on PS2 system data thing)?

I just bought my PS3 in 2010 and its brand new (80GB), but i don't know the specific model... anyway, im trying to play kh chain of memories on it but it didn't work, so i found the youtube vid where it tells you to download the add-on in the playstation store. In summary, i have the 'PS2 system data' thing when i open game data utility, but when i scroll down the game still shows as 'unsupported data' what am i doing wrong? btw, i also added a PS2 internal memory card and it's in slot 1
Answer:

Simple- PS3 stopped allowing the system to accept ps2 games, although ps1 still work. stupid yes. And the add on feature is yet to be removed from the PS store.

Toshiro Kay at Yahoo! Answers Visit the source

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only the 20GB,60GB,and 80GB MSG/Motorstorm bundle had backwards compatibility now all PS3s released after 2007 will not play PS2 games but will play PS1 games regardless if it is a 80GB that does not have the backwards compatibility so there is no way you can get your PS3 to play PS2 games ever

Only three models of PS3 play PS2 games. Those are the two launch versions (20 GB and 60 GB), and the 80 GB with *four* USB ports. If your PS3 has four USB ports, KH: CoM will work just fine. You can look up any PS2 games backwards compatibility here: http://us.playstation.com/support/compatiblestatus/

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