Unfortunately, it seems that no program is available yet to handle that kind of (proprietary) file format under Linux. The only solution left (except to install Windows) is to use MagicISO under Linux using wine.
With Ubuntu, this simply is a matter of typing:
$sudo apt-get install wine (if not installed)
$wine path/to/Setup_MagicISO.exe
$wine .wine/drive_c/Program\ Files/MagicISO/MagicISO.exe
I haven’t tried the options to burn CDs yet, but used k3b instead with the resulting ISO and it worked perfectly.
