|Going by the burner model number HL-DT-ST DVD-RW GWA-4040N, it looks like you need -RW dvd disc, I am not sure though, consult your manual or your computer shop.|
Further info here.
DVD Disk Type
Confused by the jumble of letters and symbols (–R/-RW/+R/+RW) that come after the letters DVD? You’re not alone.
All of these disk types are not interchangeable, and the type you buy will depend on your DVD burner and your DVD player. Many DVD burners will only burn to either “-R” or “+R” disks, but not the other type.
Likewise, many DVD players will only play “-R” or “+R” disks. To be sure you buy the correct type check the DVD burner and DVD player manuals before making your disk purchase.
The “-RW” and “+RW” disks are rewriteable, which is handy as they can be used over and over again. However, rewriteable disks are generally the least compatible with DVD players. You’re better off using these to save data, and burning your movies to one-time use disks.