Copying a copy

If I want to make a copy of a movie that I already ripped to a dvdr, could I just use any burning program and make an image of the copy and burn the image. I rip this movie a while back and the disk is starting to look a little scuffed. I thought I put on a fresh coat of paint so to speak. So would copying the copy by making an image and burning it be an exact copy. I ask because when I copied an SVCD this way, it failed to make a copy with chapters that the original had. thx.

Do a disccopy with any burn software.

yip, make an image then burn from that image, dvddecrypter will do this for you

Wow, very quick on the replies. Thx a bunch.