Symptom
The video for the movie may appear to get brighter and then darker while the movie is playing. Sometimes colors appear to be mismatched
Solution
There is nothing wrong with the computer or the DVD.
Macrovision copy protection is designed to deter unauthorized recording of copyrighted materials. As a part of the Macrovision system, VCRs interpret the security codes from the DVD video. This causes the video signal to degrade. The most common symptom is the brightness of the video apparently pulsing bright and dark over the course of viewing. Other visual degradation may also occur.
Since the circuit that triggers the Macrovision security is within the VCR, the solution is to connect the video cable directly to the television.
If the TV has only a Radio-Frequency (RF ) or coaxial-cable type connector and does not have a composite video or S-video type connector, then you would need an RF modulator. RF modulators can be found at most electronics stores.
A standalone DVD player will also experience the same symptoms and would require a direct connection to the TV or an RF modulator to avoid the Macrovision protection.
Additional Information
Refer to Knowledge Base article 16536: "
MultiMedia Glossary: A-F (1 of 3)" for definitions of some of the terms used in this article.
For more information on Macrovision technology refer to their web site at
http://www.macrovision.com/.