"We offer new support options and therefor the forums are now in read-only mode! Please check out our Support Center for more information." - Vuforia Engine Team
gringofx, please do not ask the same question multiple times in different threads. The issue about overlaying video on markers has been discussed multiple times. Use the forum search function to find them. Here is one to start with:
http://ar.qualcomm.at/node/2002156
Re: Pre-recorded video in Vuforia
Re: Pre-recorded video in Vuforia
Re: Pre-recorded video in Vuforia