And have you tried any other programs to burn Audio CDs aside from Nero?
If so, then it's most likely a faulty drive. If the other program worked, then you'd know that it was just nero. Test that out there, and see how things go... Then report back.
Perhaps, you just need to update your firmware for the drive. Check Toshiba's website for that.
But seriously... Why Mariah Carey? haha. Kidding. You're allowed to listen to whatever pleases you.