when i insert a dvd to burn, it accepts it and burns to temp location, when it asks me to insert a blank disc, i insert a dvdrw and it won't accept it, not recognizing the disc. i have tried a dvd-rw and dvd+r from two different stores and two different companies. i have downloaded px engine 3.0 and there are no firmware updates for tsst dvd+/-rw TSH653A SLSI CD Rom device, i believe i read you cannot copy from cd-r to dvdrw, but the dvd i am trying to burn is unprotected. i am frustrated.