| 摘要 |
The present invention is a two-part optical disk with a nested, centrally positioned removable disk in the original configuration the disks comprise two disks removably joined together so as to enable both disks to be readable with a computer disk drive. The two-part optical disk is further configured so as to be separable into independent disks. After separation of the two disks, only data on the formerly nested inner optical disk continues to be accessible by a computer disk drive. Data on the formerly surrounding outer disk is no longer accessible by a computer disk drive The two-part optical disk has large data storage capability but with separation offers all the advantages of the small disk format: convenient storability, portability and support functionality.
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