I have a Mac PowerBook G4 running Apple OS 9.2. I use a Predator USB External CD-RW drive. The software is the Mac version of "Express Backup." You sent a answer to a post concerning this drive's compatibility in March. I'm asking if this CD Drive has yet been tested and/or approved for use. I continue to get a "locked" CD-RW icon when trying to use the drive, even though I have reserved the "CD for Retrospect" 4th option in the earlier pop-up menu when the media (CD-RW) was inserted into the drive. There ought to be a way to use this drive without having to obtain another CD Drive. If that's the only way to use the software, why didn't Dantz post the "acceptable" drives on the outside packaging where potential buyers can see it?