Owners of the Xbox 360’s HD-DVD add-on will be the recipients of a new auto-update next time they try watching a movie while connected to Xbox Live. The new additions (tweaks, really) are minor, but the more improvements, the better. Those without access to Xbox Live will be able to download the update from Xbox.com later this week.

The list of improvements:

• Added option for user to select from the following audio output formats via TOSLINK or HDMI: -Digital Stereo (2 channel PCM) -Dolby Digital 5.1 -DTS 5.1 -WMA Pro
• Added “Dynamic Range Control” toggle for digital audio output
• Improved HD DVD networking support
• Improved HD DVD title compatibility
• Improved performance with MPEG-4 AVC / H.264
• 1080p via HDMI is supported on the Xbox 360 Elite with HDCP compliant displays
• Improved parental controls