No... Make sure u have extracted/downloaded the bootsector that you will need to make the CD bootable, I use to have a bootextractor but i forgot the name of it... They both can but i can't be specific with Nero, because i don't know it in and out but to make one in Nero I) Nero: 1. Open Nero Burning Rom 2. Under the burn complation wizard scroll down until u see CD-ROM Boot 3. and u have to mess around with the options in there because the HEX values in there are very pickey, I used to know that they were and i forgot them now... II) Ultra ISO: 1. Open Ultra ISO 2. Click Bootable, then Load Boot File 3. Select the file that has the bootup file 4. Done