based off of the conversation here.

here is a modified version of my above script. it gives a report of spaced used on all file types.

$files = dirplus("c:\bryce\mp3","*.*",1,1)
for each $file in $files
	if instr($types,$file.type) = 0
		$types = $types + $file.type + ","
	endif
next
$types = split($types,",")
redim preserve $types[ubound($types)-1]
for each $type in $types
	$typesize = 0
	$buffer = "              "
	for each $file in $files
		if $file.type = $type
			$typesize = $typesize + $file.size
		endif
	next
	? "$typesize" + substr($buffer,len($typesize),len($Buffer)) + $type
next

here is the output

719            BAS File
4868           Microsoft Excel Comma Separated Values File
226600         Microsoft HTML Document 5.0
351519680      File Folder
2421248        Application Extension
4457           CNT File
28392          GID File
203962         Help File
4182           Configuration Settings
1745342        WinZip File
214381         Text Document
1409           DIZ File
10053          EL! File
546            MS-DOS Application
82             OLD File
227948         LIB File
114598         GIF Image
11639          JPEG Image
48883458       PRJ File
801            DAT File
2998           Icon
2874           IDX File
-530113234     Winamp media file
15130          ISU File
4433           MS-DOS Batch File
708            Cascading Style Sheet Document
114967         PS File
3689           Winamp playlist file
1049           KixTart
6201348        Movie File (MPEG)
4335           PRE File
1659           CDB File
1575216        Bitmap Image
3957           LKS File
195            Paint Shop Pro 5 Image
299            Q2 File

i do not know why Winamp media file is -530113234. But i do have a lot of them in this folder.