From their product description: "...Retrospect Backup v5.0 supports more storage devices than any other backup software available for the Mac OS. Hard disk drives, Apple CD-RW drives, CD-RW/DVD-ROM combo drives, SuperDrives and other writable and rewritable DVD drives, tape drives and libraries, and removable cartridge drives are all supported...." V5.0? If they can't even wrote an accurate description how can I trust them to debug the latest and greatest? And I've been a Retrospect user for over twenty years! Sheesh!