Topic: dvd / cd roms not working

[TR]

I have a weird problem    no not me.

Friend gave me her PC to look at saying that the CD / DVD players dont work?  and she was correct, took them out booted up and reinstalled again saying found new hardware etc, but still doesnt work. The PC sees them and will eject the tray but wont recognise any discs?

I have tried putting them in an old tower I have and they work ok..weird huh, friends PC has all the latest drivers etc..anybody have any ideas on what could be the problem.


This has got me baffled 

[Simon]

Do they appear in My Computer and Device Manager, Terry?

[TR]

Certainl do Si, but this is the 1st time in many a year I have been stumped with a PC 

[Simon]

If you go to the properties of each drive, then click the Auto Play tab, there might be some settings there that could be tweaked.  Sorry to be vague, I'm not on the PC at the moment. 

[TR]

Sorry Si.. I have tried everything even your suggestion, new IDE cables as well...but th eweird thing is .. for some reason 1 of them is now working 

[Simon]

I was going to suggest checking cables and jumpers, but I wouldn't have thought they'd work at all if they were wrong. 

Something like this came up before, and I seem to recall there's a registry entry you can either change or remove, for it to be reset.

[Simon]

What OS is this, Terry?

[TR]

changed/deleted the upper and lower filters in the registry 

This is a XP set up

[sam]

the fact that it worked on installing suggests XP is to blame...

.. oh I see the last post.

[Rik]

Damn, I was just going to do my conjuring trick.

If DVD/CDs become ‘lost’, code 39 error “Windows cannot load the driver. The driver may be missing or corrupted (Code 39)”.

Go to Device Manager, uninstall CD & DVD drivers. Uninstall Primary and Secondary IDE channels under IDE/ATAPI Controllers - ignore requests to re-boot machine.

Go to Regedit, navigate to key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

Look for the key which refers to DVD/CD-ROM drives. Delete the subkey UpperFilters, also LowerFilters if it is present.

Re-boot the machine. All should now be well.

[TR]

still not working ?

tried scannow, was running whenb I left for work.

[Simon]

I know you've tried the drives on another machine, but have you tried another drive in that machine?

[Rik]

It does seem to be pointing at the controller, doesn't it.

[TR]

This is driving me bloody mad 

I have had other drives in said machine and same thing 


What Controller? 

[Simon]

In Rik's case, a fat one    but I was wondering that too, Terry. 

I've done a few Google searches on this and haven't come up with anything you haven't already tried.