After burning the DVD, I place it in my DVD rom and find that it is working well. Later I placed the same DVD first into my laptop and later into my another desktop as both have DVD rom in it, to my surprise both can't seem to read the DVD at all. When placed into my second desktop, it will somehow jams it and will only work as normal if I eject the DVD out. After all that I placed the same DVD to my very first desktop and it somehow works. I wonder is there an explaination for it. I tried both DVD-R and DVD+R, they both works the same way. I hope you all could give me some advise or solutions. Thanks.