can i copy a copied d.c game?if so how?please help too many coasters!

i have a samsung writer. i have cdrwin,a demo of clone,a demo of disc juggler,and blind read and write,and demo of nero.how do you unlock these demo's?maybe its the demos .i have the full version of cdrwin,i think i unlocked it.i did gameday patch for 2001 psx and it worked fine but this dc shit is hard.i have plenty of copied games but i have yet to copy 1 of them.the games i have tried are marine fishing,bass fishing, and virtual tennis.maybe you can help.any advice would be greatly appreciated. thanx

[Lord Jester]

Use DJ to make an iso of your backup. Then burn that to a cd. If you cracked
cdr-win it is more then likley useless now. 99% of the cracks pretend to work
and when you burn anything you end up with CDA files. So just use
the demo of CDRWIN.