http://www.prweb.com/releases/2006/2/prweb349642.htm
Consumable Media LLC, a Minnesota-based corporation, has announced that it plans to release its new restricted-use optical disc product in summer 2006. The premiere form the product will be introduced in is the DVD format. Known as BuyByeDVD™, the product will feature movie content on familiar DVDs, but can only play up to three times before expiring. The product works in all DVD, computer, and gaming console drives.
More info on BuyByeDVD:
http://www.consumablemedia.com/v2/products/buybye/