If you find this useful, please feel free to use it. I can't remember where I grabbed the download time calculation from. I think I just went looking for large files on download.com. :)

        my $size = ( stat "$filename" )[7];
        my $sizeunit = "b";
        my $dltime = $size / 430080;
        if( $dltime < 1.0 ) {
            $dltime = "less than 1";
        } else {
            $dltime = sprintf "%.0f", $dltime;
        }
        $dltime .= " min";
        if( $size > 1024.0 ) {
            $sizeunit = 'Kb';
            $size /= 1024.0;
        }
        if( $size > 1024.0 ) {
            $sizeunit = 'Mb';
            $size /= 1024.0;
        }
        $size = sprintf(  "%.1f %s", $size, $sizeunit );
[download]

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