Why won't my DVD Burner See blanks?

[Wadoki]

That's all good information. I was trying to use DVD+R just because I tried everyting eles. Maybe I am expecting the DVD-RW device to act like a CD-RW device. When you put blank media in a CD-RW drive the computer recognizes that there is blank media. When I put a blank DVD-R in the device the computer tries to read it, but then never recognizes that blank media is in it. Again not all media, it reads the Pioneer media. I checked Pioneer and I didn't see any firmware updates for this unit.