Re: MP4 M4V

• Subject: Re: MP4 M4V
• From: JF Neto <email@hidden>
• Date: Fri, 11 Nov 2005 08:17:10 -0200
• Delivered-to: email@hidden
• Delivered-to: email@hidden

Thanks Perry,

Weird...

Any other guess?

José Francisco Neto
Projetos Especiais

email@hidden
www.modulos.com.br
11 3872 2999
11 8122 2518

On Nov 10, 2005, at 10:20 PM, Perry Mitchell wrote:

Probably the same as MPEG2
.mp2 = combined video + audio (system) movie file
.m2v = elementary stream video file
.m2a = elementary stream audio file

.mp4 seems to be the official MPEG4 extension
.m4v is a video only file
.m4a is an audio only file, made famous of course by its use by Apple as
it's preferred format for iPod.

FWIW

Perry Mitchell

-----Original Message-----
From: JF Neto

Anyone knows a reliable source os information about
why_different_extensions_on_mpeg4 ?

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