Hello! Please forgive my ignorance, but how do I determine which Cd's and DVD's are compatible w/ my drive? I have an HP Pavillion dv9000 w/ an HL-DT-ST DVDRAM GSA-4084N drive. I can record on Mamorex CD-RW and Memorex LightScribe DVD+R discs, but it does not recognize Maxel's DVD+RW discs. Thanks!