DRM-X 4.0 video DRM and audio protection against unauthorized viewing and illegal distribution. The main threat to this business is the uncontrolled distribution of such materials over the network. Publishers always try to use audio and video protection, features should include: Prevent unauthorized use, watermarks, DRM license protection, and so on.
To learn more about encryption and digital rights management (DRM), please take a look at the following white papers.
DRM-X 4.0 Introduction and Document: https://www.haihaisoft.com/download/DRM-X_4.0_Introduction.pdf