Appeal No. 2000-1243
Application 08/826,112
APPENDIX
Claims 12, 22, 23, and 25 from Kam et al. Application 08/826,111
12. A dual layer pre-recorded optical storage disc, comprising, in order:
a transparent substrate having a first data pit pattern in one major surface thereof;
a partially reflective layer comprising amorphous selenium, adjacent the first data pit
pattern, having an index of refraction having a real component, n, and an imaginary component,
K, wherein n > 2.6 and K < 0.035 at 650 nm;
a transparent spacer layer;
a second data pit pattern; and
a highly reflective layer provided adjacent the second data pit pattern.
22. The disc of claim 12, wherein the first data pit pattern contains a format designed for
use with a first disc drive having a first laser beam having a first wavelength, 81, and wherein the
second data pit pattern contains a second different format designed for use with a second
different disc drive having a second different laser beam having a second different wavelength,
82, where 82 > 81.
23. The disc of claim 22, wherein the substrate has a thickness of about 0.6 mm and the
entire disc has a thickness of about 1.2 mm.
- App. 1 -
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