Thanks for trying to help!
Right, I made the ISO by reading the files from the disc on DVD Decrypter then building an ISO from that. So basically DVD Decrypter done it for me. I was using Samsung Pleomax 8x before now I'm using these Woolworths DVD-R's which are better than the Samsung discs.

I managed to a PS2 game on my father's standalone burner and its perfect. I did one on the Samsung disc and it crashes and stuff, I did another on the Woolworths disc and it's as smooth as the original game.

I can't find the latest firmware updates for my drive (Philips SPD2410L1) I've burned onto CD's fine in the past. As for the latest version of Imgburn, I'll try that in a minute. Thanks man.