office depot has many more types of cd/media mailers than what I have listed here. these are the most convenient for average joe.
Pelouze 20Lb internet-downloadable-rates postal scale, available at office depot, $115 staples $114, Office Max $125
this is the postal scale that handles the most weight that you can get from a popular office store. Staples had the lowest price. just search for "pelouze".
utility scales at Office Max $109-154 that handle 125,250,400Lbs.
Office Depot® Brand White Wove Envelopes, Security, #10 (4 1/8" x 9 1/2"), 24 Lb, White, Box Of 500, available at officedepot $12
Office Depot® Brand #10 Clean-Seal Security Envelopes, 4 1/8" x 9 1/2", White, Box Of 500, available at officedepot $20
Office Depot Value™ White Wove Envelopes, #10 (4 1/8" x 9 1/2"), 24 Lb, White, Box Of 500, available from officedepot $6
Office Depot® Brand #10 Business Card Envelopes, 4 1/8" x 9 1/2", White, Pack Of 100, available at officedepot $8
CD mailing supplies
CD Mailers (box), white, pack of 50, recycled fibers. available at office depot $49
this is a good price. singles are normally $2.29-2.50 each. this box doesn't apparently need tape, but I like using tape anyway. a box like this is preferable to other methods of shipping containers because of breakage. and these fit in a mailbox.
CD Mailers, 5 5/8" x 5" x 7/16", Holds 1 CD, Pack Of 50 (Item # 692173), available at officedepot $49
Avery® Smart Shipper CD-ROM/Jewel Case Mailers, 6 29/32" x 11 5/16" x 1 7/64", White, Pack Of 2 (Item # 448975) , available at officedepot, $4
Fellowes® 100% Recycled Disk/CD Mailer (flat), Pack Of 10 (Item # 482414), available at officedepot $7
50-cd cake box, available from meritline $0.43
useful for storing Mitsui MAM-A and Taiyo Yuden media. I searched far and wide for these - they actually lock. This size or smaller should be optimal for mailing, given some cd blanks on both ends for spacers. this size or smaller would probably ship CD's and DVD's fine, as long as you have a couple of cd's on either end for spacers and it's full to the brim.
25-cd cake box, available from meritline $0.30