I do video work on 1 year old AMD quad 9850 (2.5 mhz) with 4 gb ram and nvida 9400 gt (512) video card - It has an LG burner model HL-DT-ST DVD RAM GH22NP20 - it burns 4.7 gb discs beautifully but when I render video lareger than 5.0 gb using Pinnacle Studio 11 Ultimate, I take the disc image to either nero 9 or DVD FAB to burn 8.5 gb disc - after burning ( window says burning & verifiation completed successfully) I put disc into a DVD play and it reads "No File" - I have used 3-4 different manufactured discs including Tyio Uden - same thing - If i take the disc image to DVD Fab and use reduction to 4.7 gb disc, it gives me a good disc - problem with this is some of my disc images get close to 8gb which means the compression on DVD Fab degrades the image quality - has anyone out there any ideas of what is wrong - is it software errors or hardware errors - I'm tapped out - I tried Pinnacle forum and finally gave up as their tecs couldn't fix problem. Any help would be much appreciated.