I tried disabling all unnecessary services, web popup stoppers, antiviral progs, firewalls, daemon tools, and i stopped unnecessary services. Its really strange, it doesnt burn DVD (-) media witout errors, I even uninstalled old buring progs, and I reinstalled my Nero 6.3. It still fouls up. The one disk it ""successfully burned"" turned out to fail the data verification process. I have no trouble with DVD (+) media, this is why im sooo miffed. Additionally i can only burn media (data) in UDF/ISO format, if i burn with straigth ISO it fouls up and is unreadable by other DVD drives. gRRRRR any advice????