Everything about hi-tech equipment


What are dvd players

A DVD player is a device for playing discsand AOL Time Warner) as well as for MPEG-2
produced under the DVD Video standard. Mostlicenses. To avoid these fees, China has
hardware DVD players have to be connected todeveloped the EVD standard as an intended
a television set; there are also some smallsuccessor of DVD; as of 2004, EVD players
portable devices which have an LCD screenwere  only  being  sold  in  China.
attached. A DVD player has to complete these
tasks:Software DVD players are programs that allow
users to view DVD videos on a computer with a
Read a DVD disc in ISO - UDF version 1.2DVD-ROM drive. Some examples are the VLC
formatmedia player and MPlayer (both free
software), as well as WinDVD, PowerDVD and
optionally decrypt the data with either CSSDVD  Player.  [1].
and/or  Macrovision
Successors
decode the MPEG-2 video stream with a maximum
of 10 Mbit/s (peak) or 8 Mbit/s (continuous)There are two successors to the DVD player:
the HD DVD player and the Blu-ray Disc
decode sound in MP2, PCM or AC-3 format andplayer. Neither format is dominant over the
output (with optional AC-3 to stereoother in terms of consumer adoption as of
downsampling) on stereo connector, optical orJanuary  2007.
electric  digital  connector
Portable DVD Player (commonly abbreviated as
output a video signal, either an analog oneP.D.P.'s) is the name given to any portable
(in PAL, SECAM or NTSC format) on thedevice that plays DVDs. Most PDPs have an LCD
composite, s-video, or component videoscreen attached to them. The most common PDP
connectors, or a digital one on the DVI orscreen size is 7", although some are as large
HDMI  connectorsas  12".
Most DVD players also allow users to playPrice  Range
audio CDs (CDDA, MP3, etc.) and Video CDs
(VCD) and include a home cinema decoder (i.e.Prices of portable DVD players vary depending
Dolby Digital, Digital Theatre Systemson the screen. They usually retail for about
(DTS)). Some newer devices also play videos$80-200 USD. It was invented so that people
in the MPEG-4 ASP video compression formatcould bring it anywhere they go with out a
(such  as  DivX)  popular  on  the  Internet.fuss.
As of 2005, retail prices for such a device,Screen  Quality
depending on its optional features (such as
digital sound or video output), start betweenThe biggest complaint users have is the
30 and 80 USD/euros. They are usually cheapercurrent video quality of the LCD screens.
than  VCRs.Many believe new technologies are being
developed including portable HD-DVD players
By far the largest producer of DVD players isand portable Blu-Ray players that would have
China; in 2002 they produced 30 millionHigh Definition screens attached to them. The
players, more than 70% of the world output.biggest challenge is to put the same High-Def
These producers have to pay about US$20 perquality images one could find on a 50" screen
player in license fees, to the patent holdersonto a smaller screen.
of the DVD technology (Sony, Philips, Toshiba



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