I have just upgraded from a Matsushita to Pioneer 109 to take advantage of the quicker burning speeds. I use Verbatum discs that worked on any machine. Now only the occassional disc plays in all machines. I've tried burning from 8x down to 4x. I've use Nero or Decrypter to burn and have noticed the buffer for the device often falls off to nearly zero, which I think may be causing the problem. Is there any way I can get the buffer to hold the info all the time? I close all other programmes before burning and reboot.