Are we suggesting all the engineers that developed weapons during the 2nd world war were all criminals or immoral? I really don't want an answer to this.

As Nasir said - It's not his problem. Joe average can buy pc's and burners and pirate to their heart's content. So let's draw the line at the technical question - how would one make a cd duplicator?

Probably the easiest and cheapest way to make a duplicator is to get a PC and put lots of burners in it. There's probably software out there to do it, if not then the fun is in writing it yourself. I don't think I'd be using an 8051 style cpu to do this as you need to move lots of 16bit data fast whis is not the 8051's strong point.

Now, if someone asked about how to interface a 8051 to a mobile phone to remotely detonate bombs - then I think it would be reasonable to suggest they go away.

'if only he used his skills for good and not evil...'