Information management apparatus

An information management apparatus comprising:

• a head which scans a recording medium;
• a recording circuit which records main information and control information onto said recording medium using said head;
• a reproducing circuit which reproduces said main information and said control information recorded on said recording medium using said head;
• and
• an erasing circuit which erases at least a portion of said main information using said head based on reproduced control information,
• wherein said head scans said recording medium to reproduce and erase said main information while said reproducing circuit is operating, and
• wherein said control information is rewritten when reproduced.

An information management apparatus comprising:

• a recording circuit which records main information and control information onto a recording medium using a recording head;
• a reproducing circuit which reproduces said main information and said control information recorded on said recording medium using a reproducing head;
• and
• a disabling circuit which disables at least a portion of said main information using a disabling head based on reproduced control information,
• wherein said disabling circuit rewrites at least a portion of said main information using said disabling head based on said reproduced control information.

An information management apparatus comprising:

• a recording circuit which records main information and control information onto a recording medium using a recording head;
• a reproducing circuit which reproduces said main information and said control information recorded on said recording medium using a reproducing head;
• and
• a disabling circuit which disables at least a portion of said main information using a disabling head based on reproduced control information,
• wherein said disabling circuit erases said main information which has been reproduced by said reproducing circuit after said reproducing circuit has operated.

An information management method comprising the steps of:

• scanning a recording medium by use of a head;
• recording main information and control information onto said recording medium being scanned;
• reproducing said main information and said control information recorded on said recording medium being scanned;
• and
• erasing at least a portion of said main information based on reproduced control information,
• wherein said recording medium is a disk recording medium,
• wherein said scanning step comprises the step of:
• scanning said recording medium to reproduce and erase said main information while said reproducing step is being performed, and
• wherein said method further comprises the step of:
• rewriting said control information when said control information is reproduced.

An information management method comprising the steps of:

• scanning a recording medium by use of a head;
• recording main information and control information onto said recording medium being scanned;
• reproducing said main information and said control information recorded on said recording medium being scanned;
• and
• erasing at least a portion of said main information based on reproduced control information,
• wherein said scanning step comprises the step of:
• scanning said recording medium to reproduce and erase said main information while said reproducing step is being performed, and
• wherein said method further comprises the step of:
• rewriting said control information when said control information is reproduced.

An information management method comprising the steps of:

• recording main information and control information onto a recording medium using a recording head;
• reproducing said main information and said control information recorded on said recording medium using a reproducing head;
• and
• disabling at least a portion of said main information using a disabling head based on reproduced control information,
• wherein said disabling step comprises the step of:
• rewriting at least a portion of said main information using said disabling head based on said reproduced control information.

An information management method comprising the steps of:

• recording main information and control information onto a recording medium using a recording head;
• reproducing said main information and said control information recorded on said recording medium using a reproducing head;
• and
• disabling at least a portion of said main information using a disabling head based on reproduced control information,
• wherein said disabling step comprises the step of:
• erasing said main information which has been reproduced by said reproducing step after said reproducing step has been performed.