My projects are simple VHS transfers, captured as MPEG2 then edited and burned on VP. It's at the burning stage where I seem to get problems, possibly because there's no option to burn at slow speeds such as x1 or x2 or use an external burner. I'm assuming VP's burner must run at the disk's max speed and as far as I can establish, only DVDs burnt at low speeds will play on many DVD players. I've just managed to get one project to play well on my DVD player by burning from VP to a 4x DVD+RW disk. I then made an ISO file from this good disk using ImgBurn. I then burnt the ISO file with ImgBurn to a 16x DVD+R at x1 write speed with complete success!
I'm now getting some x2 max DVD-RWs to try, which I'm hoping will work more consistently.
There are other advantages to using this method. No more wasted blanks (hopefully) and ISO files that can be saved and used to make further DVD copies from.
John