Yeah, You have to have a Modchip to play burnt Games. You can get swap cards, I think that's what they are called, that plug in the back of your Ps2 & you have to use a swap disk, I don't know that much about those but I have a mod chip in my PS2 & I would say that would be the way to go, Unfortunately there is no way around it.
I use swap magic to play my backups, look on ebay or sum other site like it. Its a set of disks that you can run and then swap to a copy, ive been using it for a year now not had many problems with it at all,plays all the latest games and allows online connections if copied correctly.Latest game ive used on it is fifa 06,tiger woods 06 and wrc rally evolved not a problem at all, Do you have slimline or bulky ps2?
3 quid aint bad, i get mine for 4ish dependin on the game and release date. Do you know wether they have online capabilities and dos any1 here play online?