In the last week, I have had problems burning my dvd's onto my Plextor dvd drive at 4 x speed. I am using the right media and I cant figuire why all of a sudden it will only burn at a slower speed. I think it is a software issue. It gets so far in the burn and then ejects with an error message. I had a similar problem 18 months ago right after purchased encore, but haven't any other problem until now. Any ideas?