Yup, we're now on the same CD. I never tried it on a non-Dell so you're the expert on that one. Makes sense because it has the Dell logo, etc. As to the "other" CD, for several months Dell installed a small utility program on each new drive in addition to the restore partition. It was called Dell OS Recovery CD. When you ran it, it would burn a CD with the OS and necessary drivers for your machine but no other software. This utility only worked one time and then erased itself so you couldn't duplicate the CD's using this program. You used the CD to restore your OS from scratch. I 'd bet there were several ways to duplicate the Dell-created CD for those who wanted to try. This was a CD very specific to the machine it was burned on and probably had little value for use on other types of machines if it worked on them at all. Apparently, some types of concerns arose and Dell discontinued this program.