I'm trying to get my old laptop to create a cd (I'm trying to burn a .iso file to a Verbatim CD). So far all it does is go through all the motions, but at the end the cd is still blank (if it tries and fails, is the cd trash?) The laptop is an Acer 5315, running Vista with sp2 installed. The drive is a Sony Optiarc CRX880A. I've tried updating the firmware on the drive using a firmware flash utility from the Optiarc website (Optiarc-CRX880A-KX11.zip), and modifying a registry subkey (as per support.microsoft.com/en-us/kb/929461). The driver I'm using is cdrom.sys from Microsoft. I forgot what all programs I used for the burning, but it's been 4-5 different ones. I haven't tried cleaning the drive with a cardboard copy of a cd yet, but... (grin). Is there a diagnostic utility out there I can use to do a more in-depth test on the drive? The drive itself could be bad, but I want to be sure before I go tearing into a laptop. Any help/suggestions would be appreciated!