What is the DivX VOD code? Do I need to register my DivX Certified device?

What is the DivX VOD Code? Do I really need to register my device? I've just purchased a device that is DivX Certified and found the DivX VOD code under one of its menu otion...

The DivX VOD Registration code on DivX Certified devices is used to register your DivX device so that it can play back DivX videos purchased online - DRM videos that are encrypted.

If your device is DivX Certified and you want to play DivX videos that you've created on your computer, you do not need to use the VOD code and register the device. If you've purchased DivX movies online, the VOD code can be used to complete a one-time registration of the device.

Please follow the step-by-step FAQ article on How to register your DivX Certified Device.