To get rid of Sonic and it's components uninstall the following programs that you may or may not have:
Sonic RecordNow!
Sonic DLA
Sonic Update Manager
Storage Guard
DLA runs in the background, so before you uninstall it go into Task Manager > Processes tab, select DLA and click on "End Process".
See if that stops the Blue Screens of Death, if not then there's something else causing them, but at least that eliminates Sonic.
To replace Sonic get
CDBurnerXP, a good freeware burning program.