DriveGetFileSystem not returning expected result when no media loaded

[GEOSoft]

According to the help file a drive with no media should return the numeric 1 but returns an empty string instead.

$aDrives = DriveGetDrive("cdrom")
If NOT @Error Then
	For $Drive in $aDrives
		If IsNumber($Drive) Then ContinueLoop
		MsgBox(0, "Result", StringUpper($Drive) & @CRLF & DriveGetFileSystem($Drive & "\"))
	Next
EndIf

Tested on DVD-RW drives if it makes a difference. The trailing back slash was only added to see if it made any difference.

Also the For/In loop used in this code builds a good case for using all 0 based arrays then we don't have to check the first element for IsNumber() and numeric arrays could be used.

[GEOSoft]

I should have added that there is a not so pretty work around for this issue but it really shouldn't be required in my opinion.
I also didn't mention that it was tested on Vista only.

$aDrives = DriveGetDrive("cdrom")
If NOT @Error Then
	For $Drive in $aDrives
		If IsNumber($Drive) OR DriveStatus($Drive) <> "ready" Then ContinueLoop
		MsgBox(0, "Result", StringUpper($Drive) & @CRLF & DriveGetFileSystem($Drive & "\"))
	Next
EndIf