audiologic VCR/DVD player & Philips Mag TV

Hi: I bought an Audiologic VCR/DVD player from target.com. I hooked it up to my Philips Magnavox TV and the VCR works but when I try to play a DVD the LCD on the player says "Root" and will not display the dvd.
Looked in the manual and "Root" has something to do with viewing the cast and credits from a dvd movie . . . ????
What to do? Thanks, I appreciate your time, LJ