Casual Aquaintance Setting up a real RAM disk requires rebooting to DOS again. During startup, this sets up a 4000KByte RAM disk instead of a subst drive. The reasoning behind the last line can be found in the box called 'bull fight'. What happens next varies strongly with the respective burner software. This is an extension to the possibility of furnishing a CD with a boot sector, which is already included in the ISO-9660 standard.
Bootable CDs can present themselves to the computer in various 'emulation modes'.
In this article, we used what's called a floppy emulation. If you want to read the data within the CD's ISO standard sector, the startup sequence must load a normal CD ROM driver. Erroneous reactions with different drive and BIOS combinations ranged from unfound files to total system crashes leaving only the reset button as a last resort. It's impossible to say whether this is essentially down to sloppy BIOS programming or to unclean drive firmware. But taking a look at the El Torito spec could certainly do the manufacturers of both products no harm.