Ok, I know that happens.....Ok, let me rephrase the problem, I don't think I'm approaching it right. When I go to burn a DVD in Sonic reel DVD LE 3.1, I get this error:

error MuxfromDB:MuxVST failed
error multiplex failed
error DVD video files could not be created.

I never had a problem with this program working before, now I just decides to give me these errors.

Also, why does the blank DVD turn the drive icon to a CD drive when I put in a blank DVD?