Number helper uses lang files
Bytes use whole numbers (123.0 bytes is just silly)
diff --git a/system/helpers/number_helper.php b/system/helpers/number_helper.php
index 23ba3a1..8c9e384 100644
--- a/system/helpers/number_helper.php
+++ b/system/helpers/number_helper.php
@@ -38,30 +38,33 @@
 {

 	function byte_format($num)

 	{

+		$CI =& get_instance();

+		$CI->lang->load('number');

 

 		if ($num >= 1000000000000) 

 		{

 			$num = round($num/1099511627776)/10;

-			$unit  = 'TB';

+			$unit  = $CI->lang->line('terabyte_abbr');

 		}

 		elseif ($num >= 1000000000) 

 		{

 			$num = round($num/107374182)/10;

-			$unit  = 'GB';

+			$unit  = $CI->lang->line('gigabyte_abbr');

 		}

 		elseif ($num >= 1000000) 

 		{

 			$num = round($num/104857)/10;

-			$unit  = 'MB';

+			$unit  = $CI->lang->line('megabyte_abbr');

 		}

 		elseif ($num >= 1000) 

 		{

 			$num = round($num/102)/10;

-			$unit  = 'KB';

+			$unit  = $CI->lang->line('kilobyte_abbr');

 		}

 		else

 		{

-			$unit = 'Bytes';

+			$unit = $CI->lang->line('bytes');

+			return number_format($num).' '.$unit;

 		}

 

 		return number_format($num, 1).' '.$unit;