Hey Kirk, Try burning at 2.4X on DL media even if they can handle faster burns, not that that is an issue here, but it will increase your chances of a good burn. The logs look alright, and the discs do play well in your Panasonic, so like the others I'm assuming its your toshiba player that just doesn't like them. If it was a bad burn thingy then more than likely even your Panasonic would cough when viewing the finished product.