Yeah AVI is a container. It can be MPEG-2 or MPEG-4 video  (e.g. DIVX or XVID) 
too.  It depends on how the video is constructed. for MPEG-2 with only I-frame 
(there are I, B and P frame used in MPEG-2), Premiere can edit it without 
hiccups because I-frame only MPEG is frame accurate. 

I seem to remember Premiere 2.0 also handle MPEG editing okay. CS3 is a mess. 
Audio got out of sync during any drop out in MPEG2 file.  sometimes it also 
goes into a non-stop audio conforming and indexing loop. 

One way to handle is to create a "proxy" version of the MPEG file you have to 
an AVI. Then edit that AVI file. Once done before exporting,  rename that AVI 
file so Premiere will ask where is that file. Point it back to the MPEG file. 
In that case you can export a better quality without editing that MPEG file 
directly. 



From: Lee Menningen 
Sent: Monday, July 07, 2008 1:22 PM
To: [email protected] 
Subject: RE: [AP] best performance with mpg in Premiere


Actually, I was under the impression avi is a container format and that avi
can itself contain mpeg2 video or many other codec's. A while back I worked
at church with avi's some containing mpeg1 and others containing a four CC
codec something like YU50 (I forget exactly but it was close to that
designation).

Because of your comment about CS3, could it be that Premiere versions prior
to CS3 have some issues with mepg2 that got corrected? 

Lee

From: [email protected] [mailto:[EMAIL PROTECTED]
On Behalf Of Taky Cheung
Sent: Monday, July 07, 2008 3:32 PM
To: [email protected]
Subject: Re: [AP] best performance with mpg in Premiere

AVI is frame accurate. Every single frame from the video is a complete
frame. MPEG-2 deploys inter-frame compression which takes Premiere extra
effort to re-construct a single frame when you scrub the timeline.
Therefore, Premiere is much happier editing AVI files instead of MPEG. CS3
can handle editing MPEG-2 as it indexes the file during import. 

MPEG-2 is a delivery format. It's not ideal to edit MPEG-2. However, for
HDV, it's unavoidable to edit MPEG-2 unless you have a third party HDV codec
such as Edius, Cineform or Matrox. 

[Non-text portions of this message have been removed]



 

[Non-text portions of this message have been removed]


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