User’s Manual 2-17
The Grand Tour
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HD DVDs
❑ Like CD and DVD, HD DVD is divided into the read-only and recordable-
formats listedbelow.
❑ Some media cannot be used with this product. Be sure to thoroughly read
section "HD DVD-ROM drive" or "HD DVD-R drive" of this 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 (Twin format disc): Has both HD DVD and DVD recordable lay-
ers.
Media Structures and Capacity
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
HD DVD (Twin format disc)
Recordable Surface Recordable Layer Structure Capacity
Single-sided Dual-Layer
HD DVD Recordable Layer 15GB
DVD Recordable Layer 4.7GB