My Dell Laptop Inspiron 1300 has a DVD/CD rom drive. It loads all the CD that I want to and automatically opens them on the D Drive. When I put in a DVD movie it will not play. I open My Computer, then look at the D drive and it doesn't even recognize that there is a DVD inside but it does show a display of a CD that I place into it. This tells me that it is working and it does have a green light on the side that shows. Also, when I insert the DVD it does make some sound like it is trying to recognize but then it stops and doesn't show up. Can anyone help? I truly appreciate it. I am not very computer savvy. I know some about it as I am a teacher and try to keep up with things but I am surely no computer tech. Thanks so much! Let me know if I need to give more info. I think that the drive is Sony CRX835EK but I am not 100% sure on that one.