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Old Feb 20, 2002, 01:23 PM
The Warden The Warden is offline
Join Date: Jan 2002
Posts: 128
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??
Old Feb 20, 2002, 01:44 PM
ZJones ZJones is offline
Join Date: Feb 2002
Location: Atlanta GA
Posts: 59


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?

Old Feb 20, 2002, 03:12 PM
The Warden The Warden is offline
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Old Feb 20, 2002, 11:12 PM
aaronjon aaronjon is offline
Join Date: Oct 2001
Posts: 706

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).

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