Looking up the drive on LG's site, the drive dose not have a form of buffer under run protection. The error you are expericing is most likly an under run error.
I would first make sure dma is enabled http://www.cdrlabs.com/phpBB/viewtopic.php?t=9668
Second I would make sure the drive is freshly defragmented before burning.
I would also try burning without other aplications runing in the background such as antivirus software and web browers.