IBM ThinkPad 73P3279 - Manual (Page 24)

Take the following actions:
1. If you can read the CD or DVD Disc in another CD or DVD player or you can
see previous sessions, the directory information might be damaged on the
volume, making it unreadable. To get ideas for troubleshooting, check the
documentation that comes with the software.
2. You might have a damaged CD-R, CD-RW, DVD-R, DVD-RW, or DVD-RAM
disc. Try a new disc or another brand of CD or DVD disc.
3. If you can read from a CD-RW, DVD-RW, or DVD-RAM disc in the writing
drive, but not in another MR drive, be sure that a UDF Reader program is
installed in the computer.
4. Avoid writing at the slower 1X speed unless required by your computer.
16 ThinkPad Multi-Burner Ultrabay Enhanced Drive: User’s Guide