I have used the "Album Mailer Box" and the "LP Mailer Filler Pads" with no problems from Bags Unlimited. Bags Unlimited is a developer and supplier of collection systems and has an extensive catalog of shipping containers, mailing packages,and display systems for a variety of collectibles including 45's, 33 1/2's, 78's, cassettes, etc. You can contact them at 1-800-767-BAGS or www.bagsunlimited.com
