I just purchased a Plextor PX-716A and was trying to install the supplied software. The Roxio Easy CD DVD Creator 7.0 software will not install. It gives me an error message "Unable to find certificate file". I do have an older verion of Roxio easy 5.0 on the machine, is this causing the problem? The other software on the supplied DVD did install. I tried Plextor but they won't be back until Monday or Tuesday if they take the holiday. Any help would be appreciated.
It sounds like the disc that came with the drive is bad.
If you currently have EZCD 5 installed, you will need to uninstall it in order to install ver 7.
I uninstalled Sonic DLA and the problem went away. Software loaded just fine, it even uninsatlled version 5 for me. Getting rid of the Sonic software also got rid of my BSOD problem.