There were early El Torito BIOS implementations which only worked with
"floppy emulation" boot mode and vice versa. I definitely recall a system
which would boot from emulation CDs but not with Microsoft OS bootable CDs
- this seems to be the converse case. If all else fails you could always
try a boot manager
I was able to make one CD that is bootable on this computer. I used
Nero's built-in boot cd creator which uses DR-DOS as its boot os. This
seems to be of the floppy emulation variety. It produces two partitions
on the CD with a small boot partition containing mainly the DR-DOS
kernel and utilities (A. The second partition contains the remaining
data (D.
This also seems to be the format of the Windows 95 recovery cd that HP
provided. You see both a drive A: and a drive D: when this CD boots up.