DESC: The CopyWriter Tower series features one-touch operation for simple CD copying, allowing any novice user to operate it effectively. Supported formats are: CD ROM mode I and 2, form I and 2, CD DA (Red Book Audio), CD 1, Mix Mode, Multisession, Video CD. Taiyo Yuden is the recommended media for this product. There are two process modes: actual copy - copy directly from the source CD to the writer(s) simultaneously; test copy - copy from the source CD to the blank disc as a test, no data is burned to the disc. For firmware upgrade turn on power with the START button pressed, and insert the firmware disc into the master recorder. The system will automatically download the new firmware to the controller, and eject the disc when completed.