RW writing problem

[Demon Cleaner]

Oh my f**ckin god. I wanted to burn some movies to watch them (as I can't play GOW anymore), and my Pioneer 111 spits the DVD-RW out saying it's wrong media. Now even when I put a normal DVD into it, it won't recognize it at all and refuses access.

Have an idea what I can try? Or is it dead now, as it seems so. Last thing I burned was the copy of GOW now.

EDIT:I had to shutdown the PC, there was an I/O error, even my normal DVD refused to work. When I insert a DVD-RW with files into the burner, it recognizes them, but then again when I try to burn something to it (tried Nero and RecordNow), it says that it's a wrong media inserted, and refuses the burn. I tried with a normal DVD now, and that just works fine, but which is also annoying, as I also delete my movies after watching them, I don't keep them on DVDs too, always use rewritable media.