This CD/DVD remastering company offers a line of green disc cases that use 100% biodegradable materials (up to the transparent film used in the DVD boxes). The paper is recycled, and Polyactide (polymerized lactic acid, derived from mais) has been used in place of the usual plastic.
Reference:
http://www.branmedia.it/GreenDigital/tabid/67/Default.aspx
