Technical Specifications
If what you really want is more of the technical nitty-gritty about what makes HD DVD crisper, sharper and kaboomier than standard formats, take a gander below.
| Disc resolution: | Up to 1080p |
| Surround sound: | Up to 7.1 discrete channels |
| Disc diameter: | 120 mm |
| Disc structure: | 0.6 mm x 2 substrates |
| Interactive, mandatory hardware support: | Secondary video decoder, persistent storage, networking capabilities |
| Capacity (single-sided, single-layer): | 15 GB |
| Capacity (single-sided, dual-layer): | 30 GB |
| Combo disc capacity (double-sided): | 30 GB / 9 GB |
| Recording time: | 30 GB, HD resolution over 8 hours |
| Laser wavelength: | 405 nm (blue laser) |
| Compression technology supported (codecs): | VC-1/MPEG-4 AVC/MPEG-2 |
| User bit rate: | 32.4 Mbps |
| Track pitch: | .40 μm |
| Security: | Optional HDCP encrypted output, volume identifier layer (physical layer) and Advanced Access Content System (AACS) |
- Max Storage
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HD DVD delivers all the capacity necessary for all sorts of recorded content, including movies and live performances. The overwhelming majority of HD DVD discs are dual-layer discs with 30 GB of storage. Using the latest compression technologies, the 30 GB disc can display up to 1080 lines of high-definition images with high-resolution audio and advanced interactivity. Today's DVDs have a capacity of up to 8.5 GB, and can only display 480 lines of standard-definition (SD) images with no high-resolution audio or interactivity. - Updating Your Firmware
- Based on DVD Technology
- Blue Laser Diode for High-Density Recording
- Sophisticated Video Compression Technology
- Hardware and Peripheral Development to Expand and Advance
- Content Protection Technology
- Support from the Next Generation Operating System
Did You Know?
You can watch HD DVD Combo Discs on any standard DVD player. Finally, technology that makes minivans cool. Find out more about the flexibility of HD DVD in the About HD DVD section.

DVD and HD DVD share the same basic disc structure: back-to-back bonding of two 120 mm diameter substrates, each 0.6 mm thick. As a result, HD DVD combines advanced capabilities with essential backwards compatibility. The shared disc structure of DVD and HD DVD offers numerous advantages to consumers and manufacturers alike. Full backward compatability allows consumers to enjoy their current DVD library and audio CDs on the same HD DVD player.
Rapid technological advances are being made that will promote the smooth transition to HD DVD in everything from disc manufacturing to players and drives for PCs. HD DVD digital video recorders under development will also integrate HD DVD drives with hard drive storage to allow consumers to record HD TV programming and archive it on HD DVD discs.
Commercialized HD DVD integrates state-of-the-art protection technology using the highly secure system developed by AACS (Advanced Access Content System). AACS is licensed by
HD DVD has set the standard in the PC world. While there are already dozens of different HD DVD-ready laptops and PC models on the market today from four of the top five PC manufacturers, Microsoft's next-generation operating system, Windows Vista®, will provide HD DVD playback through a variety of third-party HD DVD software players. That means the smoothest playback and guaranteed compatibility with HD DVD content.