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in capacity, apparently unsuitable to long feature films, but according to Pony
Canyon Inc. they have been releasing TWIN format titles very successfully since Apr
06.
The new TWIN disc was also developed together with Memory-Tech Corporation, and
was submitted for approval of the DVD Forum. It is intended to store content as:
A) Two HD DVD layers (30GB) and one DVD layer (4.7 GB)
B) Two DVD layers (8.5 GB), and a third layer for HD DVD (15GB)
According to Toshiba, the same replication equipment with an additional process can
be used to add the third layer in the manufacturing of discs.
From a consumer point of view, I personally find more practical to use different sides
of the disc, one for the DVD version, and the other for the HD DVD version of the
movie, and it would be practical if each side would still have the flexibility of dual
layers.
A dual layer disc should be able to be read by any current player (DVD or Hi Def
DVD). Dual layers per side would provide enough space for extended feature films,
hi-bit audio codecs, and additional content, without having to sacrifice the quality of
the video signal with excessive compression and low VBR (Variable Bit Rate).
Maybe by the time you read this, Toshiba would have submitted yet another disc
format, however on the positive side, even with the reduced release of hybrid discs,
the HD DVD format has done something positive for the transition from DVD. Bluray
should be encouraged to do similarly, especially considering the high cost of
single format Hi Def discs.
Consult the 2006 HDTV Technology Report and the 2005 HDTV Technology Report
for information about other disc formats/inventions.
Recording Media for HD DVD and Blu-ray
Fujifilm
Verbatim
Advanced Media
Panasonic announced US introduction of BD discs for 2006
in 25GB and 50GB storage capacity, as follows:
Model Number Specification SRP*
LM-BE50DE Rewritable, 50GB, Single-Sided, Dual Layer $59.99
LM-BE25DE Rewritable, 25GB, Single-Sided, Single Layer $24.99
LM-BR50DE Write once, 50GB, Single-Sided, Dual Layer $42.99
LM-BR25DE Write once, 25GB, Single-Sided, Single Layer $17.99
(data above courtesy of Panasonic)
Jul 06
Verbatim announced availability of its new Blu-ray Recordable and Rewriteable
media.
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