Data Security

[rpmzzz]

Ok, here goes. I am considering sending someone out to do a show for me. I have a dell laptop and a lacie 500 gig external harddrive. I have worked very hard and spent a lot of money to get what I have, and in my area it is pretty much tops. I am trying to figure out how to let someone do a show for me, while at the same time securing my data on the harddrive from copying. Is there a program that will encrypt but still allow access with my karaoke programs. Or is there a program that will only allow access to a folder by certain programs. In other words, Hoster can access folder and maybe sax n dotty, but they could not copy from my harddrive to theirs. Any ideas would be appreciated, along with how it works. Thanks again