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

CD Short for Compact Disc Read Only Memory (CD-ROM), is a pre-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.

CD-RWThis is a rewritable medium that allows for content to be written many times and read many times. The CD-RW can also be used to store different formats of content.

VCDAlso known as Video Compact Disc is a format for storing video on CDs, and is not dissimilar to a VCR in that you cannot skip chapters or view rich data, just fast forward and rewind.

SVCDThis stands for Super Video Compact Disk. This is a successor to 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,

DVD+RW, DVD-RW

These three terms essentially mean the same thing. These are rewritable DVDs. They can be rewritten close to a thousand times, 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.

Media Format DefinitionMPEG 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 DefinitionAV In

Audio/Video input point to connect external devices like a video cam direct to the player

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 DescriptionPAL Phase Alternating Line is an analog color encoding system

used in 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?

Which one of these portable DVD player models will work with a computer monitor?

12 Inch Portable DVD Player [CVIB-E21]http://www.chinavasion.com/

product_info.php/pName/portable-multimedia-dvd-player-with-12-inch-

widescreen/

7 Inch Portable DVD Player [CVIB-E20]http://www.chinavasion.com/

product_info.php/pName/7-inch-portable-dvd-player-with-swivel-screen-analog-tv/

Which country will the 12 inch portable DVD player show television in?

Miscellaneous DefinitionAspect Ratio Aspect ratio is the fractional relation of the width of a

video image 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.

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/