[kooldraco]

I don't really use alcohol 120%, but I do know (and hate) that every program has it's own "ISO" making standard that's why you get so many types of images (.nrg, .gi, .bin .iso, etc...). this is also why i like to use dvddecrypter to create dvd (ps2 games) ISOs, cuz it creates a .iso image and most burning programs can work with .iso files.
as you know the best types of iso formats to work with are .bin and .iso.....there are many programs that allow you to create this, but the ones i personally use are WinISO and ISOBuster, the're nice and easy to work with.....CDRWIN also makes .bin images although I haven’t used it in quite some time.