Copy protected DVD disc and method for producing and validating same
OwnerBaruch Sollish, Moshe Brodyinventors
Life of this patent
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Abstract
A copy protected DVD disc and a method for producing a signature on the disc is provided. In an embodiment of the invention, the method for protecting a DVD disc includes producing a signature on the disc by non-destructively altering the content of at least one sector in the data zone of the DVD during encoding so that sector is generally unreadable. A DVD encoder for use in producing the copy protected disc is also provided.
Claims40
1-65. (canceled)
A method for producing a signature on a digital optical disc (DVD) comprising:
- non-destructively altering the content of at least one sector in the data zone of the DVD during encoding so that said at least one sector is generally unreadable.
A method for producing a signature on a digital optical disc (DVD) comprising:
- appending least one sector in the data zone of the DVD;
- and
- amending said at least one sector in the data zone of the DVD so that said at least one sector is generally unreadable, wherein said appending and amending are performed during encoding.
A method for producing a signature on a digital optical disc (DVD) comprising:
- generating at least one sector, each of said at least one sectors requiring at least two read operations to be read correctly.
A table for converting encoding 8-bit coded data into 16-bit encoded data code words, comprising:
- at least one 16-bit encoded data generally capable of being read in at least two alternative ways, thereby returning the value of at least two different 8-bit decoded data.
A table for use with an EFM+ encoder comprising:
- means for encoding 8-bit data into 16-bit encoded data, at least one 16-bit encoded data generally capable of being read in one of at least two possible ways.
A DVD encoder comprising:
- a non-standard sector generator.
A DVD encoder comprising:
- an ECC block invalidator.
A DVD disc comprising:
- at least one unprocessed sector within the ECC block, said ECC block comprising a partially disabled ECC.
A DVD disc comprising:
- a signature having at least one altered component in the lead-in zone of the DVD, said alteration being performed during encoding.
A DVD disc comprising:
- at least one altered sector in the data zone of the DVD said at least one sector being generally unreadable, said at least one altered sector being generated during EFM+ encoding.
A DVD disc comprising:
- at least one appended sector in the data zone of the DVD;
- and at least one amended sector in the data zone of the DVD, said at least one sector being generally unreadable, said appended and amended sectors being generated during EFM+ encoding.
A DVD encoder comprising:
- means for invalidating an ECC block.
Dependencies are inferred from the claim text.