I have a hp p.c with a hp dvd writer 740b. I use sonic, convert to dvd and vsd gear. It used to burn dvd's but all I can do know is just convert them, then burn them..But the problem is that when I put them into dvd player the player won't play them. I can burn music files. The funny thing is that the computer used to say that there wasn't any disk in the tray even when I just put one in..Can someone help me..PLEASE..I only burned 3 movies so far and have alot more to go...