This really isn't a DVD issue, but I saw nowhere in particular to put installation issues. So, anyone can move this to where it should belong should that be necessary. There may be some kind of problem with the installer with 126.96.36.199. After installing 188.8.131.52, I tried altering the installation of another application, Macrium Reflect, but it fails to alter the installation with the error "The Windows Installer service could not be accessed. This can occur if you are running in Safe Mode, or if the Windows Installer is not correctly installed. Contact your support personnel for assistance." Reflect can be uninstalled, but it cannot be installed again. Trying to reinstall it returns the same error. Reflect seems to be the only application this happens on, so I'm thinking about posting this over on the Reflect forum, too. Both Reflect and AnyDVD were updated yesterday. I restored my system back to before AnyDVD 184.108.40.206 was installed but after the latest Reflect update occurred. This issue isn't present. But, installing AnyDVD 220.127.116.11 afterwards causes this behavior to appear. It is repeatable. I'm going to try restoring back Reflect to before the update and installing AnyDVD 18.104.22.168 on the pre-Reflect update. See if it's a problem with Reflect's latest update. Thanks! EDIT: What I discovered is it apparently was "caused" by updating to 22.214.171.124. I uninstalled AnyDVD altogether and tried to alter my Reflect installation. That worked. So, I reinstalled AnyDVD 126.96.36.199 and tried altering my Reflect installation. That worked again, too. So, the apparent fix was to uninstall AnyDVD 188.8.131.52 and reinstall it.