Sometime Today, Mayuresh Kulkarni assembled some asciibets to say:
how do s/w vendors ensure that a customer who buys a CD can use it to install the s/w only on his computer and if he takes a CD dump, the second CD will be of no use to anybody else?
There is no foolproof way. All methods tried so far have been cracked. I haven't seen any software that does this though. With floppies, there used to be a few sectors at specific places that were marked. If the disk didn't have these sectors, it was considered a copy. Maybe the same is done for CDs.
Philip