Gran Turismo 2

My nearest shops for secondhand games are both crap. So I drive 30 mins for a better shop. I buy several games but the prat serving me puts the wrong game in the case. I get home and realise the error. The following week I take the game back and exchange it, arranged on phone. However, it turns out that disk 2 of 2 is missing. What a pisser! Am I never to get Syphon Filter 2, is it any good?