try downloading the Debina netinstall.
like this. it is a minimal Netinstall iso that boots and downloads the instalationfiles over the net during install, it is 40Mb or so.
check the MD5sum and burn slow (just like Knoppix). have fun. OErjan
http://cdimage.debian.org/debian-cd/...sinesscard.iso
read more here
http://www.debian.org/CD/netinst/