When using recovery discs, the drive cannot read the disc (no errors open). For example, the computer is turned on with the first recovery disc inserted into the drive. The drive activity light flashes quickly while the screen remains black with a flashing cursor. Eventually the drive activity light stops flashing after the drive stops reading the disc. When this happens the disc might be scratched, dirty, or defective or the drive's firmware may need to be updated so that the drive can recognize newer disc media.
Clean or repair the disc and try using it again to see if the drive recognizes the disc. If the disc is scratched, use a chemical disc restore product to fix the disc (available at most home electronic stores). Insert the recovery disc again after it has been cleaned or repaired and restart the computer.
After cleaning or repairing the disc, if the disc is still not recognized by the drive, update the drive's firmware. This is especially true if the discs were received from HP Customer Care via mail. The firmware for a DVD drive (the driver) may not be able to recognize the recovery disc media that was used in a more recent DVD manufacturing process. Make sure that the drive firmware is up to date, download and install any available DVD drive firmware updates from HP that match the type of DVD drive that is installed in your computer. For more information about how to find and update the firmware for you HP or Compaq computer, refer to the HP support article Obtaining Software and Drivers
Drives that are known to require a firmware update before they can read support-sent recovery discs are: TSST TS-H652L - update SP26482, and PBDS DH-16A1L/PBDS DH-16AYH - update SP35000. You can find the name of your CD/DVD drive in the BIOS Setup Utility screens or from Device Manager.
In some cases, the discs may be damaged beyond repair such as when discs are left out in the sun too long. When this happens, perform the recovery from the hard drive (if the hard drive recovery partition is still available) or replace the discs.