cd rom reads fine. DVD reads nothing

May 23, 2012 at 14:39:22
Specs: Windows 7
cd rom works, dvd does not Tried removing filters from registry, deleting and reinstalling drivers. Still the dvd shows up in my computer and it does not recognize any volume on the drive. Windows 7-64 bit platform. HP Laptop DV7 t 3000 dual DVD/CDR burner AD 7561S. In the property of the dvd unit it shows the model but under details under value it shows only CD Rom. I have less than 30 hours on this dvd player. HP would give me no help except that if the CDR is working, the DVD is also. It is a software issue.

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#1
May 23, 2012 at 14:55:25
HP is incorrect. CD and DVD media use different lasers to read/write. So, the CD can still be working but the DVD not.

It is still possible the issue may be Windows related. Try booting to a bootable DVD disk. If the drive can read a DVD disk in the BIOS screens then it is a Windows issue. You may need to hit any key when attempting to boot from a bootable DVD.

Have you tried accessing a DVD disk through Windows Explorer, or just autorun?


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#2
May 24, 2012 at 09:17:44
thank you for the response, Yes, that is what I said to the tech. He argued that point. I had a bad experience b4 with HP tech. Charged me $69 3 days after I purchased this very expensive laptop, did not fix the video marry up problem, wanted another sum of money to continue. He knew less than I did, I ended up fixing the issue myself..HP, never again. Regards to the auto run. It does not recognize. It does recognize a blank dvd and I formatted it. .I think the problem is in the codex? I did have powerdvd12 installed, then uninstalled, now try to reinstall and get a missing file error I don't play dvd's often, last time was back in November 2011, Problem showed up in March 2012. I noticed there are an awful lot of people with the same issues. I refuse to give HP any money to fix the issue. I will try booting to a disk. Haven't tried that yet.

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#3
May 24, 2012 at 14:36:05
The upper and lower filters are only part of the control files for optical drives. There are also ASPI layer filters. I haven't seen that to be an issue in Windows 7 but back in WinXP there were many folks having issues.

Third party burning programs install their own version of ASPI layer drivers whcih may replace the default ones. When you remove that program it removes the ASPI layer drivers, leaving you with none.

Try running SFC scannow. See the link below for more on that topic.

http://www.google.com/search?q=scan...


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Related Solutions

#4
May 25, 2012 at 05:08:09
ran the SFC scannow no issues. no resolve of the problem. Thanks for your input. Still stuck

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#5
May 25, 2012 at 06:12:07
Try removing the optical drive from within Device Manager and rebooting. Windows should automatically configure it again.

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#6
May 25, 2012 at 08:01:33
tried device manager remove/replace first, did not work. Thank you for the post

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#7
May 25, 2012 at 08:39:27
Did you try booting to a bootable DVD?

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