Lenovo USB Portable DVD Burner User Manual page 24

3. If you can read from a CD-R, CD-RW, DVD+R, DVD-R, DVD-RAM, DVD+RW or DVD-RW medium
in the writing drive, but not in another Multi-Read drive, make sure that a UDF Reader program is
installed 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.
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Lenovo USB Portable DVD Burner User Guide