I noticed this problem last night my Lite-on shm-165h6s drive will read data DVDs/CDs and music cds on all types of media, dvd-rw, dvd+rw, dvd-r, dvd+rw, cd-r, cd+r, cd-rw, cd+rw. I know this because I tested it with all types. But it will not read standard DVD movie discs such as retail DVDs or DVDs I made from video files using ConvertXtoDVD. I updated my firmware to SOE but that still didnt fix the problem. I also tried going into the device manager uninstalling the drive, rebooting afterwards, and letting the hardware wizard re-install it. I have ran out of ideas please help me I would really appreciate it. Thank you in advance.