Copy protection using multiple security levels on a...
Copy-protected compact disc and method for producing same
Copy-protected compact disc and method for producing same
Copy-protected optical disk and protection process for such...
Copy-protected optical recording medium and a method for...
Cross talk removing device utilizing signal from main track to s
Crosstalk canceler with digital filter for producing pseudo cros
Data assurance method for optical storage media and optical...
Data defect detection using soft decision result
Data defect detection using soft decision result
Data extraction for an optical disc drive
Data managing method for an optical disc drive writing user...
Data playback apparatus for realizing high transfer rate
Data processing apparatus and method for reproducing data of...
Data processing apparatus with replaceable memory
Data protection on an optical disk
Data read method for remedying low-quality read data and...
Data record medium, data recording and/or reproducing...
Data recorder
Data recording and reproducing apparatus having a plurality of o