Re: Am I wise to convert all my AVIs?

Andy wrote:
) I had *assumed* that the extraction process performed by my Blaze Media
) Pro would remove the AVI wrapper and therefore I thought that the
) quality of the un-wrappered "underlying MPEG" (which I would receive as
) a file from the extraction process) would not be of a different quality
) than the MPEG inside the AVI.

Highly unlikely, given that most AVIs do not use MPEG-1 compression.
Usually, they use MPEG-4 (you know, divx etc.), sometimes something else.

) I would make a guess that the additional losses you refer to come from
) the extractor utility effectively 'playing' the AVI and then re-encoding
) that played output into a new MPEG. Presumably the extra losses come
) from the compression of the video images into that new MPEG.
)
) Is my understanding now correct or am I getting hopelessly tangled?

Exactly. Furthermore, MPEG-1 is usually of worse quality (per bitrate)
than AVI (with MPEG-4), because it's an older codec, and less
CPU-intensive.


SaSW, Willem
--
Disclaimer: I am in no way responsible for any of the statements
made in the above text. For all I know I might be
drugged or something..
No I'm not paranoid. You all think I'm paranoid, don't you !
#EOT
.

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