MP2 or is it MP6, or ...

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andrewh
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Joined: Oct 4 1999

Jargon, the bane of our existence! And there was I sitting happily reading my copy of Computer Video that had arrived in the post on the same day that I had bought my first (and last) copy of DV World (Please, please, please, Bob, do not include a CD on your cover if it is as useless as that from DV World).

Anyway, to the point! I was reading the DC2000 article and suddenly this TLA (or TLANA, Three letter and number acronym) MP2 appeared. Please do not confuse this confusing business any more. By all means use a phrase that is meaningful like "DVD MPEG2", but MP2... That is simply meaningless.

Many people think MP3 is MPEG3 and that MP4 is MPEG4. Quiz? Is either statement true or partially true? What is MP1? Is there a MP5 or MP8? Aaargh!

We really do not need to add MP2 to our lexicon of meaningless terms. If someone wants to understand all the different varieties of MPEG2 (and MPEG1, 4, 7 and 21 for that matter) they will have to learn the proper terminology. If not, then just call it MPEG2 or DVD MPEG2 and the unfussy will be happy.

Thanks so much

Andrew

StevenBagley
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Joined: Aug 14 2000

>>Many people think MP3 is MPEG3 and that MP4 is MPEG4. Quiz? Is either statement true or partially true? What is MP1? Is there a MP5 or MP8? Aaargh!<<

MP3 is the file extension used by computers to mean MPEG 1 layer 3 audio files, and hence became known as 'MP3s'. MP2 is the file extension used to refer to MPEG-1 layer 2 audio files (which were popular before MP3s).

The correct extension for MPEG-2 video streams is m2v I believe...

See you earlier,

Steven

andrewh
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Joined: Oct 4 1999

What do you mean by MPEG2 video streams? This is my problem. MPEG2 is a very flexible standard and DVD uses a particular configuration (Main Profile at Main Level, VBR <10 Mbps IBP 4:2:0 in PAL land). It is very useful to be able to refer to it with some reasonable name. I do not think MP2 should be that name, nor m2v for that matter. DVD MPEG would seem reasonable.

Andrew