- From: George T. Haber <george@compcore.com>
- Date: Sun, 20 Apr 1997 14:56:44 -0700
- To: Tristan Savatier <tristan@bok.net>, markus.mehlau@muich.netsurf.de
- Cc: www-talk@w3.org, www-html@w3.org, video@mpeg.org, mpeg_sys@eikona.eng.monash.edu.au
OK Guys ======= .vob - For DVD VOB files (MPEG-2) .ac3 - For AC-3 Audio only Regards George T. Haber ( Tristan's friend ;) At 02:32 PM 4/20/97 -0700, Tristan Savatier wrote: >Markus Mehlau wrote: >> >> is there anybody in the mpeg-community that takes care about the >> file-extensions? > >This is a very good question indeed! I hope you don't mind >if I copy my comments on various relevant news-groups and >mailing lists. > >Defining or standardizing MPEG file extensions is not in the >mandate of the ISO/IEC MPEG group. > >In fact this is really a general problem: > >It seems that there isn't any organization or authority >mandated to standardizing the use of file extensions >on the internet, although file extensions are often >used by web servers and web browsers to identify file >formats (cf. mailcap and mime.types). > >So, what we see on the internet is de-facto adoption of some >extensions, which is often a source of confusion, I agree. > >The most widely MPEG-related extensions that >I have seen for mpeg so far are: > >.mpg - MPEG-1 video or systems (video+audio) >.dat - MPEG-1 systems on Video-CDs >.mp1 - MPEG-1 audio layer 1 (rare) >.mp2 - MPEG-1 audio layer 2 >.mp3 - MPEG-1 audio layer 3 (often incorrectly called mpeg3!) >.m2v - MPEG-2 video >.m2s - MPEG-2 systems (video+audio) > >Maybe it would have been nice if MPEG could have at least >"recommended" the use of particular file extensions for files >containing various types of MPEG data. I hope that the >MPEG committee will keep that in mind when finalizing the MPEG-4 >standard. > >> markus mehlau [ multimediaDEsign ] >> >> [ email ] mailto:markus.mehlau@munich.netsurf.de >> [ homepage ] http://homepages.munich.netsurf.de/Markus.Mehlau > > >Regards, -- Tristan Savatier (President, MpegTV LLC) > >MpegTV website: http://www.mpegtv.com >MPEG.ORG website: http://www.mpeg.org > >
Received on Sunday, 20 April 1997 17:56:38 UTC