This may seem a little to obvious but how about here
http://www.cd-mate.com/downloads.php
I have a LiteOn 24102b as well and until I got a drive that would read the Securom 2 disc correctly, I was unable to backup any of them. For some reason the LiteOn just wouldn't read the disc right. I bought a Toshiba DVD and now I use that to read all Securom 2 discs and use CloneCD to burn it, Works everytime.