X4

366 Annex: Digital Video and Data Storage
http://pro.magix.com
DVD +RW: +RW drives allow re-writable DVDs to be created which may be
read by almost any commercial DVD-ROM or DVD player. The companies
involved are mainly Philips, Sony, HEWLETT PACKARD (as well as Ricoh,
Yamaha and Mitsubishi).
DVD-RW: This is a write/erase DVD technology promoted by Pioneer and
Sharp. This format was developed by the Pioneer company and should be
compatible with existing DVD players.
DVD-RAM: DVD-RAM technology is based on either Phase Change, MOs, or
hard disks, etc. and is now almost 100% incompatible with all available
players.
Due to the small storage capacity and incompatibility with DVD players, setting
on this standard is not recommended.
Note: MAGIX Video Pro X4 supports DVD±R and DVD±RW, but not DVD-RAM.
Blank discs: Single-sided recordable blank discs featuring a capacity of 4.7
GB and a duration of approx. 2 hours.
Copy Protection
Macrovision (APS): The movie industry claims that even DVD-ROM drives and
decoders or diagram cards with composite outputs or s-video outputs must
support the Macrovision analog copy protection (APS). Only some older DVD
players do not possess APS.
APS adds additional signals to a DVD’s stored graphical data. The data is
almost unchanged. These supplementary signals disturb the synchronization
and the automatic recording regulation of most video recorders to prevent
recording of the video. They are not noticeable on the television or the monitor,
however.
Content Scrambling System (CSS): CSS prevents saving and duplication of
DVD video tracks to hard disk. The VOB streams of DVDs without CSS can
otherwise (like other video files) be loaded via the Import Video button
There are further types of copy protection besides APS and CSS which ensure
that retail DVDs cannot be copied without distortion