3. If you can read from a CD-R, CD-RW, DVD+R, DVD-R, DVD-RAM, DVD+RW or DVD-RW mediumin the writing drive, but not in another Multi-Read drive, make sure that a UDF Reader program isinstalled on the computer.4. Avoid writing at the slower 1X speed unless required by your computer.5. Make sure that the USB Y cable is correctly connected to the drive.14 Lenovo USB Portable DVD Burner User Guide