LaCie D2 BLU-RAY XL User Manual - page 10
LaCie d2 Blu-ray Drive
Introduction
User Manual
page 10
1.5. Blu-ray Technology
The 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 main-
taining superb HD picture quality.
The 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 sig-
nificantly 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 play-
back 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
The 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
Fig. 06