Geek-of-All

MPEG stands for the Motion Picture Experts Group , part of the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC), which creates and publishes standards for various areas of technology, respectively. MPEG standards address audio and video formats used online, in television broadcasts, and in DVD media. A number of MPEG standards are in current use, and more are sure to follow. Some well-known standards are explained briefly below. MPEG-1 : This first set of standards was developed for audio and video compression. Layer 3 is a codec within these standards, known simply as MP3, or the popular audio compression format for music. This video format was used to store movies on CDs, known as Video CD, or VCD. Quality is equal to that of a VHS tape, and compatibility playback on CD/DVD players is high. One drawback of this standard is that it only supports progressive footage, verses the inclusion of interlaced . ...

Codec stands for Co der- Dec oder (some say Co mpressor- Dec ompressor) and is used to describe anything which turns data into another form for storage or transmission, then changes it back for use. In traditional broadcasting, a codec is a physical device which turns analog video and audio data into digital form to be sent out over the air. It is also capable of turning received digital information back into an analog format. In computers, a codec is used as a way of compressing video, images and audio to a more manageable size. The majority use a lossy(Not all the data can be recovered from the file when decompressed) method of compression, but some are lossless. Lossless codecs, such as MSU or Huffyuv, reproduce the original video exactly, with no subsequent loss if the video is re-encoded. The more common lossy codecs lose varying degrees of information, but can save substantial amounts of space. A lossy codec may be transformative, predictive, or a comb...