Recipe 3.30. Restoring Access to CD-ROMs

Problem

You receive error code 19, 31, 32, or 39 when trying to access a CD-ROM, or you can no longer access a CD-ROM after you remove CD-burning software.

Solution

1. Go to Start, click Run, type in regedit, and click OK.

2. Navigate to and expand the HKEY_LOCAL_MACHINE\SYSTEM\Current ControlSet\Control\Class\ sections.

3. Double-click the {4D36E965-E325-11CE-BFC1-08002BE10318} key.

4. In the right-pane locate and delete the UpperFilters and LowerFilters entries if they exist.

Discussion

The removal of CD-ROM burning software or a software malfunction can leave erroneous data in the Registry that prevents decoding of CD-ROM content. Removing the erroneous data allows Windows to use complete, correct references for CD-ROM decoding.

See Also

MS KB 314060, "CD-ROM Access Is Missing and Messages Cite Error Code 31, Code 32, Code 19, or Code 39 After You Remove Easy CD Creator in Windows XP." For more on PC hardware standards, configuration, and capabilities refer to these sources:

Advanced Graphics Port (AGP): http://www.intel.com

AT-Attachment (ATA, aka IDE): http://www.t13.org

IEEE-1394 (FireWire©): http://www.ieee.org

Peripheral Componenet Interconnect (PCI) and PCI Express: http://www.pcisig.com

Plug and Play: http://www.microsoft.com/whdc/system/pnppwr/pnp/default.mspx

Serial ATA: http://www.serialata.org

Univeral Serial Bus (USB): http://www.usb.org

Universal Plug and Play (UPnP): http://www.upnp.org

Video Electronics Standards Association (VESA): http://www.vesa.org

IRQ, DMA & I/O: Resolving and Preventing System Conflicts, Jim Aspinwall, Wiley, 1999