My dad has the panasonic dmpbd35ebk blu ray player which has divx playback but it does not recognize the disk when i try to play one.I burn them as data disks with nero and have no problems with them on my PS3 or my brothers divx dvd player.Any help would be great,thanks.
Try using Imgburn, and instead of burning it as a DATA disk, burn it as a DVD-Video and booktype it to DVD-ROM if you can, you'll have way less issues with compatibility if you do. Can't really help you with Nero. I've stopped using it for years ever since I came across Imgburn.