If you are getting a message asking for an activation code for the TVG profanity filter, that is an extra feature that will block profanity if you activate it.
You do NOT need to activate the TVGuardian feature to use your DVD player.
If you want to activate it, you can go to http://www.tvguardian.com/contact.html to buy the activation code for a one time fee of $29.95.
The TVGuardian profanity filter will block profanity only on DVDs that have closed-captioning. About 50% of new DVDs being released do not have closed-captioning.
If you are getting a message saying it can't read the disk or something similar, then you need to call the manufacturer for help. See the following list of phone numbers.
Memorex: 877-363-6673
Magnavox: 800-605-8610
Polaroid: 866-289-5168
RCA: 800-821-5875
Disney (either a Hannah Montana or High School Musical DVD player): 866-387-1902.