I have had to install several old cd-roms in computers for friends. They no longer had the driver software and I managed to find some on the internet. Is the driver software for ide drives basically the same? Can one brand be substituted for another? Can I use drivers for a Sony on one made by NEC or Fujitsu? Where does speed come into play? How can you tell an IDE cd-rom from one that must be plugged into the sound card (cr-563 for instance)? How many different types are there?