Dave,
All FLV file sizes are dependent on those encoding properties. Those
variables are what create the variance in file sizes.
The KeyFrame interval for instance will increase or decrease file size
depending on the amount of interpolation required between each keyframe. 
If you have a keyframe every third frame for instance, you will create a
much larger video in terms of file size than one with set to a keyframe
value of say one every 30 frames

[a/]

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of David
Bellerive
Sent: 23 September 2006 03:34
To: [email protected]
Subject: [Flashcoders] RE: Flash Video : Relationship between data rate
andfile size doesn't work ?

Thanks for the replies.
However, it still doesn't make sense to me!

A 30 seconds video encoded with a total data rate
(video + audio) of 700 kilobits/second should result
in an FLV that weighs 2.56 MegaBytes no matter what
the other settings are.

But that's not the case.

If I encode that 30 second video @ 700 kilobits/second
and try to adjust the other settings (keyframe
interval, frame size, fps, etc.) differently, I get
FLV files that vary in terms of total file size
depending on those other settings.

Shouldn't all those FLV files be 2.56 Megabytes but
vary in terms of image quality ONLY and not in terms
of file size?

Please help!!!

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