My new Sony DRU500AX is not working properly so I installed the drive in my computer at work and it worked fine so the drive is not the problem. I need some ideas as to what would be causing my Sony to not read dvd’s properly (picture is all blocky) and only able to read text files off a cd in the drive but not the executables or autorun files. My computer is an AMD 1800+ with two 40GB HD, DVD reader (which plays fine), CD-RW and a ZIP drive. All are ATPI devices with the DVD rom & ZIP drive attached to a Sig ATA 133 controller. I have various DVD software for reading/burning installed on Windows XP Pro with SP1 operating system. I have 40GB HD (boot drive) connected as 1st Master w/CD-RW connected as slave and the Sony connected as the 2nd Master w/40GB HD as slave. Everything works great on my system except that darn Sony. Any help would be great as I am going to have resort to calling Sony.