Reducing CPU Load

Graphics chips with built-in Hardware Motion Compensation (HWMC) offload 20 to 30% of the CPU requirements for DVD software decoders. Please note that the quality of the HWMC varies for different cards.

Try turning on and off HWMC to determine whether the playback is best using software or hardware. This setting can be changed in the Display tab of the Properties dialog box.

WinDVD includes support for hardware-assisted IDCT or Inverse Discrete Cosine Transformation decoding when it is built into the graphics subsystem.

As with hardware-assisted motion compensation support, hardware IDCT reduces the CPU load and processor requirements by an additional 10 to 15%.

For more information, visit the Corel Web site at You will find a complete list of FAQs (Frequently Asked Questions) on our Web site, as well as a link to our technical support.



Reducing CPU Load