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Annex: Digital Video and Data Storage
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 80), MPEG-4/AVC codec is applied as the video 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 this case, consult the instructions for your Blu-
ray player or ask the manufacturer which blanks are compatible with the
device.
AVCHD disc on DVD blank:
The DVDs created with AVCHD video are not
supported by all Blu-ray players. The behavior of the devices is quite different.
Normal DVD players cannot replay AVCHD discs, since the AVC format is not
supported.
Blu-ray Disc™
Since early 2008, Blu-ray Discs are viewed as successors to DVDs and offer
especially high storage capacity of up to 27 GB in a single layer (double-layer
up to 54 GB) with very few write errors.
The term Blu-ray Disc comes from the blue color of the laser. Because a color
cannot be registered as a trademark, the letter "e" was removed from the
word "blue".
The high storage capacity of the Blu-ray Disc suits high definition videos and
slideshows in high quality perfectly, since these are characterized by large file
sizes (depending on material approximately 40 MB/sec) and very high memory
use. The MPEG-2 codec is used to create video.
Companies that were involved in developing Blu-ray technology have united
themselves into the Blu-ray Disc Association (BDA).
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