MPEG-1

MPEG-1 is the first media format defined by the Moving Picture Experts Group for compressed video with audio, optimized for CD-ROM.
==Description==
MPEG-1 uses (DCT) and to remove spatially redundant data within a frame and block-based (MCP) to remove data which is temporally redundant between frames. Audio is compressed using subband encoding. These algorithms allow better than quality video and near CD-quality audio to be compressed onto and streamed from a single speed (1x) CD-ROM drive at about 1.5 Mbps.. 1999-01-06.
===Drawbacks===
MPEG encoding can introduce blockiness, color bleed and shimmering effects on video and lack of detail and quantization effects on audio.
==History==
The MPEG-1 specification was published in August 1993 as ISO standard IS-11172 for playback achievable with the throughput of single-speed and players.ISO/IEC 11172-1:1993, International Organization for Standardization. 1993-08. A subset of MPEG-1, Audio Layer 3, became the basis of MP3.. 2000-05-31.ISO/IEC 11172-3:1993, International Organization for Standardization. 1993-08.
Apple first added MPEG-1 support to some 68040-based Macintosh models through an Apple MPEG Media System card, released in July 1995.Pipeline: Shipping, InfoWorld. 1995-07-17. Software playback of MPEG-1 video became possible on PowerPC Macs with the release of the QuickTime MPEG Extension on January 24, 1997.Press Release: Apple Introduces High-Quality MPEG Software for QuickTime by Jonathan Hirshon, Apple Computer. 1997-01-24. Archived 1998-12-02.QuickTime gets extension: MPEG-enhanced playback possible by Ed Scannell, InfoWorld. 1997-02-03.
==References==
==See also==
*Apple Video Player, for playback of MPEG-1 video in classic Mac OS.
*MPEG-2, a successor format for broadcast and home video distribution.
*MPEG-4, a successor format for web streaming and video distribution.
==External links==
*Macintosh Software MPEG v 1.0b3 for QuickTime 2.5 at Apple (archived 1996-12-19)
*MPEG-1 Video Coding (H.261) at the Library of Congress
*MPEG-1 at The Moving Picture Experts Group / 
* at Wikipedia
Category:Video codecs
Category:1993 introductions