i recently bought a new HP desktop and I'm trying to burn DVD's using DVD Santa but I have also tried windows DVD maker. In DVD Santa, after it encodes the DVD it cant burn it because it doesn't detect a DVD drive but there is one in my computer. Windows DVD maker says the file I am tryin to put on, a movie in .avi format, is either corrupt or invalid. I looked in device manager in the control panel and it says there is no DVD drive but DVD's are accessed when i put them in the drive. PLEASE HELP ME!!