Thanks to all of you for your suggestions. I will try some of the methods suggested here such as disabling the USB ports and get back to you to tell you if it worked.
As a songwriter myself, I understand the copyright laws, and have made enough money to be able to purchase another set of songs for each one of my employees.
However, I still need to protect these songs because despite how much I pay my employees, people in the karaoke business (at least down here in Florida) are greedy as hell and will do anything to steal them from you.
It really pisses me off to have to compete with a whole bunch of KJs who have huge networks using illegal copies. This weekend I heard of a KJ having 22 shows per week! Just take moment to digest that number and do the math.
If anyone can think of other suggestions to protect our precious songs, they are more than welcome.
Cheers.
