First things first , I'm pretty familiar with unix but I haven't used dos for years and even then it was just for moving files about : I know the two are similar but there are some differences like back slashes for example anyway... I'll need to either flash the firmware on my dvd drive or run a utility on it either way this has to be done in dos. Problem : I use W2K which does have a dos shell option but its not really dos and as such all indications say that you should never flash firmware using the shell (either it won't work or it will knacker the drive). Of course W2K being a modern OS does not offer the facility to create a dos boot disk ( excuse my terminology if it sucks). I don't have any other OS knocking about that will let me create a dos disk but I can get one off my mates. So I assume that I change my bios settings to boot from floppy first with the dos disc in. Then in dos I run the flash utility which as my HD is larger than dos can handle will also have to be on another floppy? ( I assume I type something like run a:utilityname.exe ??) Then reboot back into W2K to check the drive region status in a suitable checking utility??? Am I anywhere near the mark guys cause this is all guesswork ?