Asus A450CF, Электронное руководство

Страница: 108 / 130

108 Notebook PC E-Manual
DVD-ROM Drive Information
(on selected models)
The DVD-ROM drive allows you to view and create your own CDs and DVDs. You
can purchase an optional DVD viewer software to view DVD titles.
Regional Playback Information
Playback of DVD movie titles involves decoding MPEG video, digital AC3 audio
and decryption of CSS protected content. CSS (sometimes called copy guard) is
the name given to the content protection scheme adopted by the motion picture
industry to satisfy a need to protect against unlawful content duplication.
Although the design rules imposed on CSS licensors are many, one rule that is
most relevant is playback restrictions on regionalized content. In order to facilitate
geographically staggered movie releases, DVD video titles are released for specific
geographic regions as defined in “Region Definitions” below. Copyright laws require
that all DVD movies be limited to a particular region (usually coded to the region at
which it is sold). While DVD movie content may be released for multiple regions, CSS
design rules require that any system capable of playing CSS encrypted content must
only be capable of playing one region.
IMPORTANT! The region setting may be changed up to five times using the viewer
software, then it can only play DVD movies for the last region setting. Changing the
region code after that will require factory resetting which is not covered by warranty. If
resetting is desired, shipping and resetting costs will be at the expense of the user.