I have used a crop brqand of DVD-R and it won't play in my DVD player. I have no problems with Apple DVD-R's. My iMac can still read the original disk but using disk copy and imaging the disk and burning the image results in a dvd that won't play on either the Mac or the DVD player. There must be a way to copy home made DVD's as ther arn't any copyright issues so how on earth do I do it? I don't want to change a thing, I don't want divx or anything like that I just want to keep it exactly the same with all the menus etc.