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Annex: Digital Video and Data Storage 75
Digital Versatile Disc (DVD)
Quality
Featuring a resolution of 720 x 576 (PAL) and encoded with MPEG-2, 25 frames per
second provides very good results.
Writable data storage formats
The recordable DVD market is currently split into three types: "DVD-RAM",
"DVD+RW", and "DVD-RW".
DVD-R/+R: This medium may only be written to once. The DVD-R may be specified
with file structures for DVD video, DVD audio, or DVD-ROM.
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 easy 4 HD 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.
AVCHD disc
Use this format to create a high-resolution video. You can burn Blu-ray (BD-R/RE)
blanks as well as conventional DVD±R/RWs. In contrast to Blu-ray Discs (view page
76), MPEG-4/AVC codec is applied as the vide
o format, which requires less memory
at a comparable image quality.
Compatibility
AVCHD disc on Blu-ray blank: Since this is a BD-conformant format, the disc created
can be played back in any conventional Blu-ray player. Playback problems can almost
always be traced to incompatibilities between Blu-ray blanks and Blu-ray players. In