Cant burn dvds (Toshiba Equium M70-173)

[qanda]This thread is about the Toshiba Equium M70-173 Intel® Centrino™ Mobile Technology with Intel® Pentium® M Processor 740/XP HE/512MB/60GB/DVD-SuperMultiDL/WiFi. Click here to see full specs[/qanda]I have had my laptop for 3 yrs now,never had trouble burning cds or dvds.I use dvd shrink,nero 7 and occassionally sonic.None of them seem to be working and i am ready to smash my laptop up.I have been trying for a week to get them to work.Someone please give me a clue.