Need a bit more info pls
AGH2000 - pls give us a more info. Things like the following make it easier for the pps here to work out possible problem
What type of CD you trying to make (data, VCD, SVCD, Audio etc)
What brand of CDR are you using?
If it is a one to one copy - what is the source disk - game, music etc?
O/S used
Burn speed
Your burner model can also help
Cheers,
Oldy