Editing MPEG-1 (section)

==Applications==
*Most popular [[software]] for video playback includes MPEG-1 decoding, in addition to any other supported formats.
*The popularity of [[MP3]] audio has established a massive [[installed base]] of hardware that can play back MPEG-1 Audio (all three layers).
*"Virtually all [[digital audio players|digital audio devices]]" can play back MPEG-1 Audio.<ref name=mpeg1_audio/> Many millions have been sold to-date.
*Before [[MPEG-2]] became widespread, many digital satellite/cable TV services used MPEG-1 exclusively.<ref name=bmrc_mpeg2_faq/><ref name=mpeg_faqs2>{{Citation |first1=Harald |last1=Popp |first2=Morten |last2=Hjerde |title=MPEG-FAQ: multimedia compression [2/9] |date=November 9, 1996 |publisher=faqs.org |url=http://www.faqs.org/faqs/mpeg-faq/part2/ |access-date=2016-11-11 |url-status=live |archive-url=https://web.archive.org/web/20170104010344/http://www.faqs.org/faqs/mpeg-faq/part2/ |archive-date=January 4, 2017 }}</ref>
*The widespread popularity of MPEG-2 with broadcasters means MPEG-1 is playable by most digital cable and satellite [[set-top box]]es, and digital disc and tape players, due to backwards compatibility.
*MPEG-1 was used for full-screen video on [[Green Book (CD-interactive standard)|Green Book]] [[CD-i]], and on [[Video CD]] (VCD).
*The [[Super Video CD]] standard, based on VCD, uses MPEG-1 audio exclusively, as well as MPEG-2 video.
*The [[DVD-Video]] format uses MPEG-2 video primarily, but MPEG-1 support is explicitly defined in the standard.
*The DVD-Video standard originally required MPEG-1 Audio Layer II for PAL countries, but was changed to allow AC-3/[[Dolby Digital]]-only discs. MPEG-1 Audio Layer II is still allowed on DVDs, although newer extensions to the format, like [[MPEG Multichannel]], are rarely supported.
*Most DVD players also support Video CD and [[MP3 CD]] playback, which use MPEG-1.
*The international [[Digital Video Broadcasting]] (DVB) standard primarily uses MPEG-1 Audio Layer II, and MPEG-2 video.
*The international [[Digital Audio Broadcasting]] (DAB) standard uses MPEG-1 Audio Layer II exclusively, due to its especially high quality, modest decoder performance requirements, and tolerance of errors.
*The [[Digital Compact Cassette]] uses PASC (Precision Adaptive Sub-band Coding) to encode its audio. PASC is an early version of MPEG-1 Audio Layer I with a fixed bit rate of 384&nbsp;kilobits per second.