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You are not alone.
I have the same problem. I am running Vista Home Premium on an HP dv6263cl laptop with an Optiarc DVD RW AD-7530A ATA drive. Since I updated with Vista Service Pack 1, the DVD RW drive has not worked consistently; it reads some disks, but not all, and sometimes it won't read a disk that it was able to read before. I have not observed that it makes a distinction between programs and other types of files.
I've tried the disks on my wife's notebook and it read them all without any problems. It has Windows XP Home.
I have tried uninstalling and reinstalling the DVDRW driver. Didn't work.
I tried the registry fix, deleting the upper and lower filters; I found them in the appropriate place in the registry, but it didn't work for me.
I've contacted HP twice, and they were very accomodating, but so far all they've offered me are the same fixes that I've already tried and haven't worked.
Unluckily for me, I cannot System Restore to the date before I installed Vista Service Pack 1. (Unknown to me, Norton Internet Security turned off my System Restore settings. I'm never getting another Norton product again, but that's another story.)
I do have System Restore disks from the time when I just got the laptop from the store. However, that would mean having to re-install quite a lot of software, some of which I did not get an extended download period option on, and I'd hate to pay a second time for all that software.
Has anyone got any ideas? I, too, can do without losing my laptop for an extended amount of time.
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