Nero cdrw issues

vbimport

#1

hi, I have a cdrw drive that can burn cdr’s just fine but I popped in a cdrw today and it gave me this error message:

this is not a cd-r
invalid writestate
could not perform endtrack
simulation failed

cdr’s work ok, so is it the medium possibly or does anyone know if I’m doing something wrong o.0…? thanks