How to prevent employee theft by copying hard drive

[dlessnau]

I use the Holster Laptop for my shows and have 750 cdg's imported. I have now hired a KJ to do shows I cannot do myself.

Is there anyway to protect myself from the KJ copying my songs on the laptop hard drive and going into business for himself?

Seems like anyone with computer ability could get many thousands of dollars worth of songs, and weeks of importing those songs, in a few hours, for free.