For CD #4 you must enable overburning if you are using K3B !
Also note that cdrecord version must be >= 1.10 !

If you're reading this on data.bluewhite64.com, you will find that the
ISO images are not here.  This is because we simply don't have the
bandwidth at data.bluewhite64.com to provide ISO images.
ISO downloads take a long time, and block people from retrieving
small updates.

If you're looking to download the ISO, consider using the primary mirror:

http://mirror.inode.at/data/bluewhite64/