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  #1  
Old Feb 20, 2002, 01:23 PM
The Warden The Warden is offline
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Default Difference between .avi & .mpeg?

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Can anyone explain the differenve between .avi & .mpeg files - i just spent abour 4 days downloading a movie on Morpheus only to later see that there were .avi versions available which were almost a quarter of the size.

What gives??
  #2  
Old Feb 20, 2002, 01:44 PM
ZJones ZJones is offline
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MPEG or MPG?

MPG is the file extension for MPEG1 and MPEG2. These are the formats used in DVD, VCD, and SVCD and are read by most stand alone DVD players.

AVI is a somewhat smaller file depending on the compression and screen size but as far as I know, it can only be read by computers.

AVI can be converted to MPEG, and AVI can be created from MPEG. Sometimes there is a resolution loss when these files are converted.

I guess you have to ask your self... what were you expecting to do with the file once you got it downloaded?

Z
  #3  
Old Feb 20, 2002, 03:12 PM
The Warden The Warden is offline
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thanks
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Old Feb 20, 2002, 11:12 PM
aaronjon aaronjon is offline
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in general
.avi .mpeg1 .mpeg2 .divx .rm .mov etc. are all audio/video file types which are compressed to varying degree`s and give varying quality on play back. in order to play these files on your computer you need a file player for the specific type of file you are trying to play, or your player must have available on your system a COmpressor DECompressor (codec) utility in order to play the particular file type.
.mpeg was devised to be a universal standard file type to give good quality/size ratio by the Motion Picture Experts Group (mpeg).
.mpeg1=vcd, .mpeg2=svcd and dvd.
so if you download an .mpeg1/2 file they can go straight to vcd/svcd without encoding, and if you download a smaller file it will have to be encoded to .mpeg1/2 for vcd/svcd (with loss of quality, as you never get better out than what you put in).
hth
 

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