In the fast world of electronics and gadgets, upconversion vs.
blueray is the latest controversial battle. These two powerful
technologies 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 blueray finally replace
upconversion or is it too sophisticated for the majority?
Upconversion Vs. Blueray Details
Blueray is an optical disc format 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 significantly increased compared to conventional DVDs by up
to five times more. There are single-layer discs that can store
around 25 GB while a dual-layer disc can store twice as much.
Upconversion is an HD-DVD process which uses optical disc
formats originally developed by Toshiba and NEC. Ironically, it
also uses much of blue-laser technology to boost storage
capacity. Upconversion vs. Blueray has posed a number of
problems to consumers since supporting companies like Sony,
Toshiba and NEC among others have chosen sides. The rivalry of
the two next-generation formats pushes consumers to choose
between the two. At present, there is still no universal format
when it comes to ultimate HD experience.
Upconversion Vs. Blueray: Choosing Your Side
Here are some differences in the upconversion vs. Blueray
battle. Blueray has a storage capacity of 25 GB on a single
layer disc compared to upconversion's 15 GB. Blueray's
dual-layer disc can hold up to 50 GB while upconversion can hold
30 GB. Both technologies use blue laser with a wavelength of 405
nm. Blueray 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 blueray
discs and has a hard coating compared to the thicker 0.6 mm in
upconversion with no hard coating.
Data transfer speed for both devices are almost identical at
around 36 Mbps but Blueray 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 (1080p). Maximum video bit rate is
40 Mbps for Blueray while upconversion is at 28 Mbps. Video
codecs are similar for both supporting MPEG-2, MPEG4-AVC and
SMPTE VC-1. As for audio codecs, both are also identical
supporting Dolby and DTS Digital Surround. Upconversion vs.
Blueray seems to be a race to the finish and the days of
standard DVD will soon be over. People only need to determine
which best suits their needs and is most convenient and
practical.
About the author:
Michael Hehn is the webmaster of http://ipodaccessoriessite.com,
a site that offers a wide range of useful and helpful
information about ipod
accessories. Visit his site for more free tips to choose the
ipod accessories for you and your family.
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