See also:

Operation Instructions - (Disc Mode For CD And MP3/WMA Audio Play, DVD-Video)
The radio DVD player and many DVD discs are coded by geographic region. These region codes must match in order for the disc to play. If the region code for the DVD disc does not match the region ...

General Information
The Sentry Key system complies with FCC rules Part 15 and with RSS-210 of Industry Canada. Operation is subject to the following conditions: • This device may not cause harmful interference. � ...

Operating Instructions - Video Entertainment System (VES)™ (If Equipped)
Refer to “Video Entertainment System (VES)™” for further details. Dolby Manufactured under license from Dolby Laboratories. Dolby and the double-D symbol are trademarks of Dolby Laboratories ...