I customized my version of UBCD 3.3 Full. Basically I added a few apps of my own, including ERD 2005.
In order to get ERD to work I started creating the ISO by using CDIMAGE. ERD works fine when I create the ISO this way. However, INSERT no longer works, returns the error "Can't find INSERT filessystem. sorry. Dropping you to a (very limited) shell."
If I create the ISO once again, without modifying anything at all using mkisofs I get INSERT working again, however, ERD does not.
MKISOFS (CD is the directory with the files)
"..\cdrtools\mkisofs" -V UBCD -N -r -o %ubcdoutput% -b boot/loader.bin -no-emul-boot -boot-load-size 4 .
cdimage -lUBCD -t08/23/2001,09:00:00 -b.\ISOFiles\boot\loader.bin -h -n -o -m .\ISOFiles %ubcdoutput%