In Windows you sometimes watch DVDs but have to stop the movie mid-way through. You cannot always watch an entire movie in one setting from start-to-finish. You stop the DVD by closing Windows Media Player while the movie was still playing or paused. Later after you have shut off your computer, you want to resume the DVD at the exact hour, minute and second where you were last watching it. How do start the movie at the point where you left off?
Go to My Computer. Find the drive letter for the DVD player. Right click it and choose "Open AutoPlay..."