Can't get burn to work for boot or game

[zombieman69]

Appreciate everyone's help in advance. I am new to the dreamcast burn scene. although I have had a Dreamcst for awhile. I have read the Tutorials, FAQ's, and searched the forums but I cannot get my games or boot disk to burn, actually the boot disk won't burn, the game burns but doesn't work. (1) boot disk- I have downloaded the Utopia file from the link in the forume (ver. 1.1) extracted it and tried to burn it with both Nero (ver. 5.5.9) and Alcohol 120% and evry time I get errors. I have even downloade some copies from bit torrent and have the same problem. I am using Win Xp, I have 768 MB ram, my drive is a Samsung CDRW/DVD Sm-308B. The error message I get when I use Nero says: (a) Invalid command(b) Cannot write compilation to selected recorders simultanouesly in that order. My Dreamcast was manufactured in August 2000, and I have burned a self-booting game on CD and all it does is see a cd and doesn't play. Used Alcohol 120% to burn the image, with no errors. Thanks.