Karaoke Cd's

I run a computerized Karaoke show. The discs are present at the show but the contents of the discs have been copied to a hard drive for the computer to run. Regarding copy laws I know the discs can not be copied without permission. That won't happen. The computer allows me to produce a much better show. Should I be worried about the pirate patrols busting me or due to the fact that the originals are present will they just slap my hand and tell me to stop?