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Computer Unable to read DVD burner

Posted on 2006-06-01
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Last Modified: 2010-04-26
My computer won't recognize any cds or dvds that I put in it.  Its a slave drive and recently it worked fine.  It didn't come with any software and it is being recognized.  However, its not reading it.  Is there any way to correct this problem.
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Question by:rudodoo
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Expert Comment

by:garycase
ID: 16813390
Run RegEdit (Start, Run, Regedit) and remove the Upperfilters and Lowerfilters values from the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

Then just reboot your computer.

Note:  This is a "harmless" registry change.  The filters will simply be reset at the next boot.  They can, however, become corrupted -- that's why this fixes a lot of CD/DVD access issues.
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by:rudodoo
ID: 16813411
There isn't a upper filter, does that mean anything?
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Expert Comment

by:garycase
ID: 16813429
No -- just delete the Lowerfilters.   There's no guarantee this is your issue -- but it's a pretty common problem and this fixes a lot of DVD/CD issues.   Post back and let me know if it resolves it.
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Author Comment

by:rudodoo
ID: 16813430
I think I found the problem when I ejected the dvd drive there was this donut shaped grey object that came loose.  It feels kind of like styrofoam.  When I insert dvd's now it works.  However, this think seems like it came off the dvd drive and I wonder how important it is to it
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garycase earned 1000 total points
ID: 16813444
Well, maybe it was your Upperfilter :-)    :-)

... a bit more seriously ==>  it's probably the pad that presses on the DVD's center hole to apply pressure as it rotates.   IF it's rotating okay without it, the drive will probably work fine -- but may have difficulty at higher rotation speeds (it SHOULD just slow down if that's the case).   You'd have to disassemble the drive to replace it -- and it's not clear you could do that.   I'd leave well enough alone -- at the price of drives these days if it does fail just replace the drive.
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Author Comment

by:rudodoo
ID: 16813468
Ok thanks for your help
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Expert Comment

by:garycase
ID: 16813481
You're most welcome -- glad it was so simple ... and hope it lasts for a long time without needing a replacement.
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