Yes, that's partially true (notice you had a buffer underrun even at the slowest speed), but I think the issue here is the quality of the media you're using: your burner doesn't like it and that's why you're getting an error when trying to burn it. Try getting the Verbatim 2.4x blanks and it should work.
Alternatively you could use another computer to burn your games, preferably a desktop computer with a full size burner, as laptop slim burners are quite bad.