sell on ebay, or sell any cd's dvds, at your local cashworks.

OR,

this is what me and a mate did yesterday to get sum buds, take your ps2 or dvd player down to a trading shop (eg: cashworks) and ask to buyback so they buy it off you, then u can buy it back a week later, but only $10 more.
we got $50 for the ps2...and dam we got whacked last night!

if your not 18, find someone who is.