Taiyo Yuden DVD-R16x MID TYG03 are the ones I've been using. I was getting some write errors with the TDK's on older DVD burners. I popped these suckers into ALL of my older burners and voila... not ONE coaster... I bought my DVD's at Ocatve Systems at the following link. And NO... I don't work for Octave.
http://www.octave.com/
Samsung or Memorex, which ever is on sale.