HP Compaq 6910p User Manual page 22

If Sleep or Hibernation is initiated during playback of a disc, you may experience the following behaviors:
●
Your playback may be interrupted.
●
You may see a warning message asking if you want to continue. If this message is displayed, click
No.
You may need to restart the CD or DVD to resume audio and video playback.
16 Chapter 6 Using an optical drive ENWW