to explain what causes this ...... and this would also explain
why you cannot duplicate an EA Games' cds the normal way
they purposely create "bad" sectors on the cd when they create it.
the program/game actually looks for these bad sectors, as an
authentication method. if the cd in the drive doesn't have this bad
sector, it means that it was duplicated without using the method EA
uses.
why it cannot be duplicated the same way? cause normal cd burning
s/w corrects the bad sectors. it removes the bad sectors before
burning the cd, cause in normal circumstances, bad sectors are
useless and just take up space. when the game looks for the bad
sectors, it won't be able to find it. there are ways to remedy this
..... try searching on the web. i don't want to put myself into a
sticky situation by quoting links .....