NEC ND-1100A Doesnt recognize DVDR+ or -

Hi i have a ND-1100A and i am tring to burn a dvd in nero
when i push the disc info button it says there is no disc in the drive whenever i put it a DVDR+or - .If i try to burn it says insert disc… it does read movie dvds and such but refuses to read blank ones…
im totaly lost please help!

Thanks!

the 1100A is a + writer, so u shouldn’t be trying to use - discs in the first place, heh. do u have problems with other burning programs?

Ya i tired other software and same thing