First, md5 checked OK, as did the testcd boot option.
Second, this program does work fine with 2003-05-20-EN
Error reports that it cannot find cdrdao, checked in /usr/bin/ and it is there. Checked the search paths in K3B and they include /usr/bin/ in both releases.
knoppix@ttyp0[knoppix]$ whereis cdrdao
cdrdao: /usr/bin/cdrdao /usr/share/cdrdao /usr/share/man/man1/cdrdao.1.gz
Anyone else try the new release and have this problem?

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