Virtual burner like Phantom Drive for Linux OS?

"Which format are you burning from that you must burn to an emulated burner in order to get an iso (9660)? If you're just burning files already on your file system, just use mkisofs, it creates an iso9660 file for you. If you're using some kind of Bin/Cue or some other format, you're actually looking to convert the format to an iso9660.

The only (rare) cases where there's a call for a virtual burner are the ones where you have some proprietary software that only supports burning it's output to a CD or DVD in a drive and will not let you save an image first. If this is the case, you might specify which software you're using under linux that limits you like this, and perhaps someone can suggest an alternative."

"mkisofs -- check LiveCDCustomizationFromScratch,
and, How-To Make Ubuntu DVDs Including Main, the Universe and Everything
These links discuss making LiveCD images, but you can probably pull the necessary usage."