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The Complete Portable DVD Player Guide, Every Term Explained
Like all documentation that accompanies portable electronic readers, eBay listings and instruction manuals are full of jargon. And, as a DVD player retailer, it’s your job to understand what all the acronyms mean and what all the buttons do. But why? You might ask. There are two simple reasons:
1) You don’t want to look like a complete amateur in front of tech-savvy buyers.
2) You will need to be able to explain what everything does in simple, clear language for novices who don’t really understand what they are buying.
So to help you out, we’ve put together a list of almost every term you’re likely to encounter when selling portable DVDs online.
MPEG 1, 2, 3 & 4: Audio and video compression standards established by the Moving Pictures Export Group. The numbers refer to versions with MPEG 1 being the 1st and MPEG 4 being the newest, MPEG 4 is probably best known as the MP4 format which is used on MP4 players.
MP3: This is perhaps the most recognized audio format designed by the Moving Pictures Expert Group. This is an audio file compression standard.
WMA: Windows Media Audio is an audio data compression standard developed by Microsoft but widely distributed on many MP3 and MP4 players from Chinese wholesale manufacturers. The video version of this format is WMV. DiVX: A compression technique that converts long video sequences into smaller segments without losing too much detail. It uses the MPEG-4 compression standard.
XVID: This open source compression technique competes with DiVX for market share and also compresses video according to the MPEG-4 standard. The difference between the two is that DiVX is proprietary while XVID is distributed under Gnu or is free to use.
JPEG: This is the format used for photographs and is used by most digital cameras. This allows the user to play back camera images on the portable DVD screen.
CD: The shortest and best known nickname for Compact Disc Read Only Memory (CD-ROM). A CD is a pre-pressed compact disc that contains data that can be read by a computer and a number of other players, but cannot be overwritten.
CD-RW: This is a CD that can be recorded and played multiple times. CD-RW can also be used to store different content formats. It’s a bit like a blank VCR of the computer world.
CD-R: A CD-R (recordable) allows content to be written once and read many times. This type of disc stores all types of media files – it’s kind of like a blank VCR that you record to and then push the tabs to prevent it from being recorded again. Abbreviation for Video Compact Disc. VCD is a CD video storage format. The VCD is like a VCR tape in that you can’t skip chapters or display rich data, just fast forward and rewind.
SVCD: The Super Video Compact Disc. While this successor to the VCD was supposed to challenge the DVD format, it lacked the quality and storage capacity of DVD and never really took off. DVD: Digital video discs. They look like CDs but store six times more data and can display video by chapters.
DVD RW/ DVD+RW/ DVD-RW: Basically three variations of exactly the same thing. A DVD RW is like a CD RW in that data can be read and written multiple times. The + and – and competing standards, although it is generally accepted that + is superior and therefore the industry standard for rewritable discs.
SECAM: This analog color coding system was developed in France for television broadcasting. You can still find it used in France, parts of Eastern Europe, and some former French colonies. PAL: Phase Alternating Line is an analog color coding system used in broadcast television in large parts of the world. DVDs with PAL encoding will only play on players that can decode this signal and PAL and NTSC color encoding systems give security professionals and car backup camera installers endless headaches.
NTSC: This analog color coding system was developed in the United States for television broadcasting and quickly earned the nickname Never Twice the Same Color. It is mainly used in the United States, in the countries that border it, in the American territories and in parts of South America.
ATSC: The Advanced Television Systems Committee standard defines a digital broadcast standard for the United States, Canada, Mexico, and one or two other territories.
DVB: The digital video broadcasting standard is (or will be) the industry standard for over 130 countries. It is used for satellite, terrestrial and digital terrestrial for portables (including mobile broadcasts).
AV Out: audio/video output point for connecting a DVD player to a home TV, car system, etc. AV In: audio/video input point to connect external devices like a video camera/game unit directly to the portable DVD player.
VGA Output: Video Graphics Array is a type of port that was first introduced in computers, but is now found in many devices with a separate LCD screen.
USB: The Universal Serial Bus is probably the most generic entry you will see on computers. With USB, you can connect a variety of devices to the DVD player, including cell phones, laptops, computers, MP3 and MP4 players, and more.
SD/MMC/MS Card Reader: Secure Digital/Multimedia Card and Memory Stick are all types of flash memory used in portable electronic devices such as MP3/MP4 players, digital cameras, camcorders, cell phones, etc
HDMI: High-Definition Multimedia Interface is an audio/video interface for transmitting uncompressed digital data. HDMI connects digital audio/video sources such as set-top boxes, Blu-ray disc players, personal computers (PCs), video game consoles (such as PlayStation 3 and Xbox 360), and AV receivers to audio devices compatible digital monitors, computer monitors and digital televisions
S-Video: Separate video is an analog video signal that carries video data as two separate signals, lumen (luminance) and chroma (color). S-Video is midway between standard definition and high definition and S-Video carries standard definition video (usually at 480i or 576i resolution), but does not carry audio over the same cable .
Aspect ratio: Aspect ratio is the fractional ratio of the width of an image (or screen) to its height. The two most common aspect ratios in home video are 4:3 (also called 4×3, 1.33:1, or standard) and 16:9.
Screen resolution: Screen resolution refers to the number of rows and columns of pixels on the LCD screen. A screen with a resolution of 800×600 will have 800 pixels horizontally and 600 pixels vertically in each frame.
Modulation/Demodulation: This is a method of transferring digital data streams and converting them into an analog stream.
FFT Model: FFT refers to Fast Fourier Transform which is the algorithm used to decrypt digital signals broadcast by television stations and broadcasters. An FFT model is used in DVB-T transmissions.
NES/SNES: The Nintendo Entertainment System and Super Nintendo Entertainment System are game 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 audio/video playback is skip-free, especially when you are mobile, such as in a car. By knowing what the terms mean, you’re well on your way to becoming the technology guide you need to help buyers through the buying process. So what are you waiting for? Put your new knowledge to good use and start improving your sales today.
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