I've been trying to burn this double disc movie with DXC,which requires 4 discs. Well,I've got the first 3 burned fine,when I get to the fourth,and right after I insert the blank media in the burner and press Start,I get a message that burn has failed. Itried different discs and the same thing. I even tried DVCX with the same result.Is anybody out there who can help me???. I have a Panasonic burner (LFD-521) and using Princo 1x media.Thanks.