I used to use a samsung se204n dvd rw for burning my dvd’s. When it broke down I purchased a Memorex 32023223 20x DVDÂ±RW DL USB 2.0 External Drive w/LightScribe & Software (Black/Silver). The problem I am having is that all the software I previously used for burning dvd (DVD Decrypter and DVDFab) will not allow the dvd to be opened if I am using the burning software. DVD decrypter will give me a "semaphore timeout error DVD could not be opened) and DVDFab just gives me an error medica cannot be opened. When I try the same dvd with the same program on my friends laptop it had no problems opening it. Is it possible the burner itself has some sort of macrovision acp protection on it to not allow the software to operate properly and if so can it be bypassed? thanks and have a great day.