Note to self just buy decent discs when you find them

So after the problem with the spindle of dvd's the other day I ended up buying just a spindle of 15 I found. They were Fuji packaged and dirt cheap and had used the brand before so figured why not? Just as emergency ones until I can find a decent supply of ones I liked. Popped them open and they read 16x in my main burner so figured ok back in business for some quick file dumps. Did a quick backup of the past few dumps off my CF card that were sitting on one of the drives. I usually burn slower anyways just to be safe so the disc finished without a problem.
So here it is I waited until tonight to dump some files off my older system which is just a basic dvr with a older burner in it that is maybe 6 mo's behind the one I use in my main. So probably identical drives or one generation behind but really the same. Popped a disc in and queue up some of the video files to backup. Hit the final burn page and oh whats this they'll only do 2.4x in this one. Lovely. Hosed for another night of doing a backup so it's back to get another stack tomorrow.