WWW.AIMMA.ORG     American Information and Media Management Association.

WWW.HEXALOCK.COM     Hexalock is a premier copy protection system for many file types on CD. This web site gives an explanation and info on getting a publisher number for your titles you need to protect.

WWW.MACROVISION.COM     Macrovision supplies copy protection for video and disc applications. Previously Macrovision only protected analog copying of DVD's, but now with their newest product "Rip Guard" they have a solution for digital copying of DVD's.