Do you sell portable DVD players online? Then you need to know the terms involved so you can convince your customers that you know your trade. Here is a guide to every portable DVD player related term.

2. Like all electronic products, features for portable players are also full of jargon. As a
reseller of portable DVD players it is important for you to understand these clearly for
two reasons:
• Savvy consumers knows and understand electronics and are looking for an equally
adept seller
• Novices need help understanding which product is right for them
Here is a list of terms which should help you go from zero knowledge to expert in no
time:
Disc Format Definition
Short for Compact Disc Read Only Memory (CD-ROM), is a pre-
CD pressed compact disc that contains data accessible to, but not
writable by, a computer.
CD-R A CD-R (recordable) allows for content to be written once and
read many times. This type of disc stores all types of media files.
This is a rewritable medium that allows for content to be written
CD-RW many times and read many times. The CD-RW can also be used to
store different formats of content.
Also known as Video Compact Disc is a format for storing video on
VCD CDs, and is not dissimilar to a VCR in that you cannot skip
chapters or view rich data, just fast forward and rewind.
This stands for Super Video Compact Disk. This is a successor to
SVCD the VCD and was meant to challenge the DVD format. Quality and
storage capacity is superior to a VCD, but lower than the DVD.
DVD Digital Versatile Disc or Digital Video Discs. They look like CDs but
store six times more data and can display video in chapters.
DVD RW, These three terms essentially mean the same thing. These are
DVD+RW, rewritable DVDs. They can be rewritten close to a thousand times,
DVD-RW making them very useful as backup media. The + and – and
competing standards, though it is generally accepted that + is
superior and therefore the industry standard for rewritable disks.

3. Media Format Definition
MPEG 1, 2, 3 & 4 These are compression standards for audio and video set by the
Moving Pictures Export Group. The numerals refer to versions with
MPEG 1 being the 1st and MPEG 4 being the latest. These
standards apply across all transmission and distribution platforms.
MP4 This is another name of the MPEG 4-Part 14 standard created by
the Moving Pictures Expert Group standards. This standard
specifies compression for both video and audio. Commercially a
number of manufacturers use MP4 on products that can playback
both audio and video. However, this is misleading as MP4
products must be able to playback files with the extension .mp4.
WMA Windows Media Audio is an audio data compression standard
developed by Microsoft.
DiVX This is a compression technique that converts lengthy video
sequences into smaller parts without loosing too much detail. It
uses the MPEG-4 compression standard.
XVID The opposite of DiVX, is a compression technique and a direct
competitor for DiVX. It also does video compression based on the
MPEG-4 standard. The difference between the two is DiVX is
proprietary while XVID is distributed under Gnu or is free to use.
MP3 Designed by the Moving Pictures Expert Group, this is a standard
for audio files compression.
JPEG This is a compression standard for photographs and is used by
most digital cameras. Having this lets the user playback pictures
from the camera on the portable DVD screen.
External Ports Definition
AV In Audio/Video input point to connect external devices like a
video cam direct to the player

4. AV Out Audio/Video output point for connecting DVD player to home
TV, car system etc.
VGA Out Video Graphics Array port, first introduced in computers now
popular in portable devices, used to connect to LCD displays
among others.
USB Universal Serial Bus is one of the most common interface
devices on a variety of platforms from computing to
audio/video. With the USB you can hook up a whole host of
devices to the DVD Player including mobile phones, laptops,
computers, mp3 and MP4 players etc.
SD/MMC/MS Card Reader Secure Digital/Multimedia Card and Memory Stick are all
types of flash memory used in portable electronic devices
from MP3/MP4 players, digital cameras, camcorders, mobile
phones etc. A card reader for these devices ensures content
on them can be played on the DVD player.
HDMI High-Definition Multimedia Interface is an audio/video
interface for transmitting uncompressed digital data.
HDMI connects digital audio/video sources and AV receivers
to compatible digital audio devices, computer monitors, and
digital televisions
S-Video Separate Video is an analog video signal that carries the
video data as two separate signals, lumen (luminance) and
chroma (color).
This differs from composite video which carries picture
information as a single lower-quality signal, and component
video which carries picture information as three separate
higher-quality signals. S-Video carries standard definition
video (typically at 480i or 576i resolution), but does not carry
audio on the same cable.
TV Encoders Description
PAL Phase Alternating Line is an analog color encoding system used in

5. broadcast television is large parts of the world. DVDs with PAL
encoding will only play on players that can decode this signal.
SECAM Developed in France, it is an analog color encoding system for
broadcast television. It is primarily used in France, parts of
Eastern Europe some former French colonies.
NTSC Developed in the USA, it is an analog color encoding system for
broadcast television. Primarily used in the US.
DVB Digital Video Broadcasting is (or will be) the industry standard for
digital video in many countries around the world. It is used for
satellite, terrestrial and digital terrestrial for portables (including
mobile broadcasts).
ATSC Advanced Television Systems Committee standard defines a digital
broadcast standard for the US, Canada, Mexico and one or two
other territories.
Test Your Knowledge!!
What can you tell about these portable DVD players from their descriptions?
7 Inch Portable DVD Player [CVIB-E20] 12 Inch Portable DVD Player [CVIB-E21]
http://www.chinavasion.com/product_info.php/p http://www.chinavasion.com/product_info.php/p
Name/7-inch-portable-dvd-player-with-swivel- Name/portable-multimedia-dvd-player-with-12-
screen-analog-tv/ inch-widescreen/
Which one of these portable DVD player models will work with a computer monitor?
Which country will the 12 inch portable DVD player show television in?
Miscellaneous Definition
Aspect Ratio Aspect ratio is the fractional relation of the width of a video image

6. compared to its height. The two most common aspect ratios in
home video are 4:3 (also known as 4x3, 1.33:1, or standard) and
16:9.
Signal to Noise Ratio Signal-to-noise ratio compares the level of a desired signal (such
as music) to the level of background noise. The higher the ratio,
the less obtrusive the background noise is.
Screen resolution This refers to the number of rows and columns of pixels in the
LCD display. So a screen with 800x600 resolution has 800 rows of
pixels and 600 columns.
Bit rate Bit rate is a measure of the rate of information content in a video
stream. It is quantified using the bit per second (bit/s or bps) unit
or Megabits per second (Mbit/s). A higher bit rate allows better
video quality.
Modulation/Demodulation This is a method of transferring digital data stream and converting
it into an analog stream.
FFT Pattern FFT refers to Fast Fourier Transform which is the algorithm used
to unscramble the digital signals broadcast by television stations
and broadcasters.
A FFT pattern is used in DVB-T transmissions and usually refers to
signals being modulated for 2048, 4096, or 8192 carriers (2k, 4k,
8k mode, respectively).
FEC Forward Error Correction is a system sending extra data with
transmissions so that the television stations can quickly establish
the cause of errors and fix them.
NES/SNES Nintendo Entertainment System/Super Nintendo Entertainment
System. These are gaming consoles released by Nintendo in the
early 1990s. Many third-party devices come with these built-in,
including portable DVD players.
ESP Protection Electronic Skip Protection basically ensures playback of
audio/video is skip free especially when mobile…say in a car.

7. By knowing what the terms mean you are a long way towards becoming the
technological guide you need to be to help buyers through the purchasing process.
So what are you waiting for? Put your new-found knowledge to use and start improving
your sales today.
Now you know what everything means get portable DVD player models
with everything your customers want. See them at Chinavasion.com or
paste this into your address bar:
http://www.chinavasion.com/index.php/cName/home-audio-video-
portable-dvd-players/