Transferspeed is unfortunately not supported anymore.

Read here to see what it was about:

Transfer Speed is a simple Transfer Speed measuring tool for CD-ROM drives an Writers.
Plain and Simple. It's easy to use, It's thoroughly tested and more important: It's for FREE !
This application will work under Windows 95, 98, 2000, ME, XP & Windows NT 4.0.

Related articles:
http://www.cdspeed2000.com/go.php3?link=dvdspeed.html
http://www.cdfreaks.com/article/74/4
http://www.cdfreaks.com/article/74/5
http://www.usbyte.com/common/compact_disk_6.htm
http://www.videohelp.com/tools?tool=Nero_CD-DVD_Speed
http://en.wikipedia.org/wiki/CD-ROM