When you ran the IDEFix program it should have identified the CD-Rom Drive. If it didn't you need to look at the drive setting for Master/Slave on both the Hard Drive and the CD-ROM drive. On two of the IDE hard drives I have here, for some reason they do not allow Slave drives to function properly even when set to Master with Slave. I would recommend that you set the hard drive to master and the CD-Rom to slave if possible. Once that's done, you need to re run the tool to detect CD-Rom drives that came with IDEFix, and you should see your cd-rom drive listed. With CacheCDFS, I don't know as I haven't used that program.