Blu-Ray Disc Format Vs Upconversion
In the fast
world of electronics and gadgets, Upconversion vs. Blu-ray is
the latest controversial battle.
Both are powerful
technologies and have been very useful and remarkable in a lot
of ways but belonging in the same category has placed them in a
tight competitive situation.
Will Blu-ray
finally replace upconversion or is it too sophisticated for the
majority?
Details
Blu-ray is an
optical disc format which was originally developed by BDA or
Blu-ray Disc Association which is a manufacturing group
focusing on electronics, media and computers.
The format was
improved to allow recording, playback and rewriting of HD or
high-definition video.
Due to the
use of blue-laser technology, storage capacity is increased
compared to conventional DVDs by up to five times
more.
Single-layer
discs can store around 25 GB while a dual-layer disc can store
twice as much.
Upconversion is
an HD-DVD process which optimizes optical disc formats which
was originally developed by Toshiba and NEC. It also uses much
of blue-laser technology to boost storage capacity.
Upconversion vs. Blu-ray has posed a number of problems to
consumers since supporting companies like Sony, Toshiba and NEC
among others have chosen sides.
The contunuous
rivalry of the two next-generation formats challenges consumers
to choose between the two. Presently, there is still no
universal format when it comes to ultimate HD
experience.
The
Choice
Outlined are
some differences between upconversion vs. Blu-ray .
Blu-ray has a
storage capacity of 25 GB on a single layer disc, upconversion
has 15 GB.Bueray's dual-layer disc can hold up to 50 GB and
upconversion can hold 30 GB.
Both
Upconversion and Blu-ray technologies use blue laser with a
wavelength of 405 nm. Blu-ray has a numerical aperture or NA of
0.85 while upconversion has 0.65.
Both discs
measure 120 mm in diameter and are 1.2 mm thick. Protection
layer is only 0.1 mm in Blu-ray discs and has a hard coating
compared to the thicker 0.6 mm in upconversion with no hard
coating.
The data
transfer speed for both devices are almost identical at around
36 Mbps but Blu-ray discs have an advantage in video and audio
transfer at 54 Mbps. The two tie at the top in terms of video
resolution at 1920x1080. Maximum video bit rate is 40 Mbps for
Blu-ray while upconversion is 28 Mbps.
Video codecs are
similar for each of these products, supporting MPEG-2,
MPEG4-AVC and SMPTE VC-1. Regarding audio codecs, both are also
identical supporting Dolby and DTS Digital Surround.
Upconversion vs. Blu-ray seems to be a race to the finish and
the days of standard DVD will soon be over. You would need to
determine which best suits your needs and is most convenient
and practical.
Video Codecs Supported by
Blu-ray
MPEG-2 - Used for playback on HDTV
recordings and DVD's
MPEG-4 AVC
Audio Codecs Supported by
Blu-ray
Dolby Digital - Format for DVD's 5.1
channel surround sound.
Dolby Digital Plus - This is an extension
of Dolby Digital 7.1 digital surround sound
Dolby True HD
DTS - Digital Surround - This is the
format used for DVD's
DTS HD -
High Resolution Audio
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