Drive recognizing DVD+r as unformatted DVD+RW

My DVD RW drive is model ATAPI iHAS122 8

This problem has just been occurring recently. I have been trying to burn DVDs for the last few days in imgburn, and when I insert a dvd+r it tells me in the status bar (Ready (Disc needs formatting)) of coarse trying to format a DVD+R will end in failure, and maybe a ruined disc.

What is going on with my drive/imgburn and what can I do to fix it?

thank you all for your help in advance.

Edit: Sometimes the problem is fixed by opening and closing the drive, but my chances for this working in the last few hours have been increasingly slim. I have to do this 10-15 times before it recognizes as a regular DVD+R

Have you edited the Bitsetting/booktype options?
Also, is daemon tools, incd or alcohol installed?