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Hi all, I have a weird problem involving the installation of the driver for a Lightscribe CD/DVD burner. I have several of these burners including an HP TS-L633R internal SATA drive on one Windows 7 Ultimate machine and a couple of Toshiba/Samsung TSST SD-R6572M IDE drives in an external case and internally in a Compaq EVO N620c laptop with XP Pro. The external works fine with other machines when the driver installs properly including both on my Windows 7 Ultimate machines. An acquaintance of mine was impressed with the ability to burn the 'label' on Lightscribe CDs and DVDs because of the permanency. So he ordered an external drive a year ago. At that time, when he could not get it to burn the labels on the appropriate discs, I tried to install my software, a generic Lightscribe program and the Nero Cover Design program. I also tested his new external drive on my machines and it worked properly. However, I cannot get his to burn the labels using either of his machines, both Windows 7 Home Premium. And, my external burner also does not work with his machine. In trying to see what is different between his machines and mine, I looked at the Registries using Regedit (I am old-school, having been in the software development and IT field since 1983). On my machines, Win 7 or XP, I find reference to Lightscribe all over the place. However, on his home machine, Win 7, (I do not want to go into the Registry of his work machine until I can get his home machine to work) I find no reference at all to Lightscribe. I have even put a spare HDD in one of my XP laptops, reinstalled the OS, checked the new Registry and found no Lightscribe (as expected), then installed the software which I use (on his as well as mine), checked the Registry again and found the appropriate reference to Lightscribe and was able to burn a label. Does anyone have an idea why the driver does not get 'loaded' into the Registry on his Win 7 Home Premium machine? Despite my long-time experience professionally, I have no problem admitting that some things are beyond me, such as how to work with the Registry other than reading it and saving it. I have not had to deal with the Registry in my work, primarily because my work is primarily with database system. TIA -Mac-