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User’s Manual 4-17
Operating Basics
HD DVD
This section describes the features and use of HD DVD.
Summary
HD DVD refers to next-generation of HD (high vision) capable high
definition DVD discs approved by the “DVD Forum”, the worldwide DVD
standards organization in which over 230 companies from all over the world
participate. There are two types of read-only HD DVD-ROM (single-sided);
single-sided dual-layer 30GB (Gigabyte) and single-sided single-layer
15GB. A single full-length, high definition movie can be stored on a single
HD DVD disc.
HD DVD Media
■ Like CD and DVD, HD DVD is divided into the read-only and recordable
formats listed below.
■ Some media cannot be used with this product. Be sure to thoroughly
read section the HD DVD-ROM drive, Chapter 2, before using this
product.
■ HD DVD-Video: For video playback. Used to store movies and other
video.
■ HD DVD-ROM: Read-only media.
■ HD DVD-R: A recordable media which can be written to only once.
■ HD DVD-RW: A recordable media intended for AV applications, which
can be written to and erased repeatedly.
■ HD DVD-RAM: A recordable media intended for PC applications, which
can be written to and erased repeatedly.
Media Structures and Capacity
■ HD DVD (Twin format disc): Has both HD DVD and DVD recordable
layers.
Please refer to the included Qosmio HD DVD Guide for more information
on the HD DVD.
Recordable Surface Recordable Layer Structure Capacity
Single-sided
Single-Layer
HD DVD Recordable Layer Only 15GB
Single-sided
Dual-Layer
HD DVD Recordable Layer Only 30GB
Double-sided
Single-Layer
HD DVD Recordable Layer Only 30GB
Double-sided
Dual-Layer
HD DVD Recordable Layer Only 60GB