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LaCie d2 Blu-ray Drive
User Manual
Introduction
Page 13
1.5. Blu-ray Technology
e precise blue laser that gives Blu-ray its name
reads and writes smaller areas of information, allowing
much more data to fit on a disk than red rays (used in
standard CD/DVD burners), while maintaining superb
HD picture quality.
e LaCie Blu-ray records BD-R/BD-RE/DVD±R
single and Double layer/DVD±RW/CD-R/CD-RW,
reads BD-ROM, DVD-ROM and CD-ROMs.
Blu-ray Disc abbreviations
Blu-ray Disc can be shortened down to “BD”. BD-
R are one-time writable Blu-ray media and BD-RE
are rewritable. Both Blu-ray disc types come in two
versions: single or double layer. As both layers are on the
same side, the double layer discs are single-sided.
Blu-ray Disc video capacities
As with DVD, this depends on the usage of video
bandwidth, the number of audio tracks and other
authoring criteria. Furthermore, the choice of the codec
also impacts playback time. On average:
On a single layer disc: 2 hours of HD Video = 135
minutes of HD using MPEG2 plus 2 hours of bonus
material in standard definition quality OR 10 hours of
broadcast-quality, standard definition video.
Using any of the advanced codecs, these numbers
can even be significantly increased.
Manage Copies Across Home Networks
Pre-recorded Blu-ray discs incorporate a robust
copy protection mechanism, which not only relies on
implementation at the playback device, but which also
includes precautions at the replicator level, which will
be strictly controlled. Nevertheless, you will be able
to copy a Blu-ray disc content to compatible devices
throughout your home.
Disc durability
As the result of recent breakthroughs in hard
coatings, Blu-ray discs offer much stronger resistance
to scratches and fingerprints than other existing disc
formats, resulting in high reliability for archiving.
Uses
e capacity of the Blu-ray discs will be particularly
suitable for:
High Definition television recording
High Definition video distribution
High Definition camcorder archiving
Mass data storage
Backup of workstations (the media can even be stored
in a remote location)
Transferring large files and entire projects from one
computer to another
Database storage
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