Step 3: Advanced Production
Talking about production in the OLD days, you had to do Much, much more(and N64 mainufactures know this) then cpoy a CD onto another CD, Production of the Genesis games starts with an "EP"ROM(the master) which copys itself over and over to more cartrages. Also, this rom is made sure NOT to be destroyed. If you witness the new releases for the Game Boy(well, re-releases) of FFa, FFL1-3, they just took these roms and made more games. The process takes a while, but it gets the job done.
Go To Step 4: Advanced ROMS