Sony PCV-RZ50CG - Manual (Page 209)

Why can't I view or record a movie when my computer is connected to my VCR or DVD player?
If you see a blue background in the View window, the movie may be copyright-protected. Your computer is not able to
display or record a video or DVD that is copyright-protected by Macrovision or CGMS-A (Copy Generation Management
System - Analog).
Page 209