A mate got a kicking on a car forum trying to do just the same with a satnav DVD.
Seems that unless you swore on a bible, had many witnesses (also under oath) attesting they had seen an address label put over the unopened original it would be bootlegged!! It struck me more as a bargaining position than real outrage as the suggested asking pricing dropped to around 30% of new
so worth little more than the storage medium...
Oh and when someone eventually bought it for 20% they claimed it didn't work and returned it for refund, but obviously it worked fine