Size of FC2-i386-DVD.iso is greater than 5,36 GB?

[Aim]

Hi there,

I'm still downloading the FC2-i386-DVD.iso from a German mirror
(ftp.join.uni-muenster.de) and the size is still raising. I've read
something about the wrong displayed filesize in some FTP-Client (like
CuteFTP) or wget (they are only using 32bit).
I'm using SmartFTP on a Win2k Box and the displayed filesize is
4.07GB. After i read some Forumthreads, i thought that is the right
Filesize but I'm now still wondering why the DVD.iso isn't finished
yet.
Is there any reason for that? 

Greetings