Claims
- 1. A method for security declassification of a disk having at least one interior information-bearing surface, comprisinglengthwise-splitting the to-be-split disk into a number of thinner split-disk fragments; and, contacting each interior surface of the split-disks with a rotating cutter having a patterned surface to provide a declassified disk surface.
- 2. The method of claim 1, wherein the to-be-split disk is a DVD, and the DVD is split into two DVD halves each of about ½ thickness of the to-be-split DVD.
- 3. The method of claim 1, wherein the cutter has a length equal to or about corresponding to an exterior data ring radial length of the disk.
- 4. The method of claim 2, including, before splitting the DVD, marking each exterior face of the to-be-split disk with a marking that directs contact of the split disk with the rotating cutter.
- 5. The method of claim 1, including contacting a batch of CDs and split-DVDs with the rotating cutter.
- 6. A high-security, high-speed DVD declassification machine, comprising:a patterned-surface cutter; a motor connected to the cutter for rotating the patterned-surface cutter at 10,000-30,000 rpm; and a system for capturing and positioning a lengthwise split half-DVD to press the rotating patterned-surface cutter parallel to the DVD surface with the cutter length aligned with a disk exterior ring radial length for sweeping the disk external data surface.
- 7. The high-security DVD declassification machine of claim 6, including a cutter of length about corresponding to the exterior data ring radial length of a disk.
- 8. The high-security DVD declassification machine of claim 6, including a housing having disposed therein the cutter, with a DVD splitter device detachably contacting an exterior surface of the housing.
RELATED APPLICATION
This is a continuation-in-part of U.S. application Ser. No. 09/516,934 filed Mar. 1, 2000 now patented as U.S. Pat. No. 6,334,582 (issued Jan. 1, 2002).
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Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09/516934 |
Mar 2000 |
US |
Child |
09/954271 |
|
US |