A stamper having a patterned layer composed of a hard material and a compressible material back plane layer. The back plane layer may be composed of an elastomer. The stamper may be used to imprint an embossable layer disposed above a substrate for the production of a magnetic recording disk....http://www.google.com.au/patents/US8038863?utm_source=gb-gplus-sharePatent US8038863 - Composite stamper for imprint lithography
