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Originally Posted by haigha
Actually, you wrote "DVD format is MPEG4, whereas MP4 is ipod, Xbox etc and is a container format FOR MPEG4," with no indefinite article at the front. I don't know anyone in my field that would say "DVD format is MPEG-4." It makes no sense. Here is a good definition of MPEG-4 from the Wikipedia page I linked to in my earlier post:
MPEG-4 is a collection of methods defining compression of audio and visual (AV) digital data.
Notice that there is no mention of DVD in the entire article. Also, there is no mention of MPEG-4 on the DVD article but it does refer to MPEG-2.
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my turn....
you reckon you know all about this yet are only quoting from wiki.... well let me indulge you..... MPEG-4 is used for HD DVD! yes, you read correctly, D...V...D.... now, since you know so much, I'm sure you know from the below 'where' it says MPEG-4 (hint... you can even use wiki)
Media type High-density
optical disc Encoding VC-1,
H.264, and
MPEG-2 Capacity 15
GB (single layer) 30
GB (dual layer) Read mechanism 1× @ 36
Mbit/s & 2× @ 72 Mbit/s Developed by
DVD Forum Usage Data storage, including
high-definition video
gee that was an AMAZON (sic) leap of web searching. Of course some dedicated DVD players
can play MP4, just like they can play audio CD's as do heaps of other items (ipod, PSP, iphone ring a bell????). My questions were trying to point out the difference between Mp4 (NOT supported by the BMW car player according to his list) and MPEG-4.... The OP wasn't getting anywhere was he, but we already knew that because it was playing the sound only and not his video. Secondly, assuming he understood the difference and I was misunderstanding his use of Mp4 and Mpeg-4 in his post, I simply asked for further info.
!!!!! (tool - australian slang)
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The container format that worked for the OP is .AVI. This is used primarily on computers and was originally created by Microsoft in 1992 before vehicle DVD players existed. So much for your "computer supported format" theory 
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You really can't read can you.... Mp4 is a container format and so are avi's. The MP4 file format is originally based on Apple's Quicktime file, which is a computer supported format.
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The information is likely on the Internet somewhere
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reaallly??? 'and provides link to wikipedia' ...... errr
My Bad...... would you like me to point you to the proper information that you know all about? I can even point you to the web site if you like.... if you're talking about a pissing contest I suggest you check your pants..... there's a little bit of dribble...
obviously you cannot read, so let me spell it out for you
THE
STATEMENT
WAS
FRAMED
IN
THE
CONTEXT
OF
DO
YOU
REALIZE
MP4
IS
NOT
MPEG4
oh, and by the way, if you're gonna quote 'official definitions' why don't you try a little harder instead of 'imadeitupedia'??
Now.... to point out the obvious, you really are a KNOB (end of an appendage) coming in and 'expertly' correcting someone who was trying to assist the OP? Offer your help to the OP and leave it at that....