Thank you, alyoshka, for responding to my post. Unfortunately, my knowledge of computer technology is extremely limited, so I didn't understand half of what you said. (Sorry) You asked what program I'm using to burn the dvds - I'm not using a downloaded program to burn dvds, my laptop has a built-in disc burner. When I put a dvd into my sliding door & close it, a window asks me how I want to burn it & I click on cd/dvd. Then, it tells me to add the files that I want to burn, so I go to the folder where I keep my movies & clips, & I copy what I want to burn & paste it. After they have finished loading, I click on "burn disc", & a blue line goes from left to right indicating how much is completed. When it hits 100%, it tells me to wait while it finishes burning the disc. Then, sometimes, it tells me that "there has been an error burning the disc" & when I put the disc into the dvd player, there's nothing on it. When it says that the disc has been burned successfully, I put it into my dvd player & one of three things happens - #1) It plays the video properly but the audio is 6-8 seconds behind it; #2) My dvd player tells me, "unsupported format" & won't play anything; #3) My dvd player lists all the movies or clips I have burned to the disc, but when I click on any one of them, I'm told, "unsupported format". You mentioned that perhaps my "dvd writer" has gone bad - This is the first time that I've ever tried to use it, so it couldn't be bad from overuse. How do I check it to see if it's working properly? What did you mean by "burning options"? The only option my burner gives me is to name the disc & what speed (2x, 4x, 8x). I don't know what "Nero" or "Magic ISO" are - could you please explain? ....... Thank you for taking the time to respond to my post & I hope you will try to help me once again. Please keep in mind that when you explain something to me, you will have to explain it like you're talking to a child, because my knowledge is extremely limited. (Sorry) Hoping to hear from you ............. P.S. - In case this information might be of some help, I'm using Memorex dvd+R; My laptop is a Toshiba; My dvd player is a Haier HEC HDMI; I have converted clips to different formats (avi, mpeg4, etc.), but get the same result. Once again, thank you for your time .....................