I use brand name CD-Rs (Mitsui, Kodak, etc). I send discs without cases in paper covers. I am in Australia so postage outside of Oz takes about 2-3 weeks to get there. All audio discs are in DAO and so should yours be. I can scan and mail covers if you like - I don't have a printer so I can't send them on paper. All rules are flexable so gimme a mail if you have a problem.