Hm. I actually have two PSIVs.
The other one is basically my friend's but he left
all his games when he moved out (and started a professional poker career). I could ask him if I could have all his games. I know he doesn't really care about them because he can always play all those games on his PC using emulator (or just buy them back from eBay, money is not a problem for him anymore :D).
There are also some other classics like:
- Shining in the Darkness
- Shining Force I
- Landstalker
- Rings Of Power
- Star Control
- PSII and PSIII
Anyway, close to 30 games IIRC.