I bought a PS3 in China and recently brought it back home to Canada. I was dismayed when it (despite being an 80 gig model) was unable to play PS2 games AND it was unable to play DVD's!

I assume this has something to do with region-locking (God, I never hated it before till now) but I'm wondering:

Can I buy a blu-ray disc (movie or a PS3 game) here and use it on my PS3 which I bought in China? Please help!