Information processing apparatus, information processing method, and program

An information processing apparatus comprising:

• a meta data managing unit that detects whether a second different information processing apparatus having content identical or similar to content as a deletion target is present on the basis of meta data allowing identification of details of the content as a deletion target received from a first different information processing apparatus when the first different information processing apparatus deletes the content as a deletion target, that records information of the second different information processing apparatus and the meta data of content identical or similar to the content as a deletion target and transmits a detection result that the second different information processing apparatus is present to the first different information processing apparatus when the second different information processing apparatus is present, and that transmits the detection result that the second different information processing apparatus is not present to the first different information processing apparatus, receives compressed and encoded data obtained by performing a compressing and encoding process on the content as a deletion target from the first different information processing apparatus, and records the received compressed and encoded data on a recording medium, when the second different information processing apparatus is not present;
• and
• a search unit that searches the recording medium for the compressed and encoded data on the basis of the meta data received again from the first different information processing apparatus when the first different information processing apparatus is instructed to reproduce the deleted content, that transmits the compressed and encoded data to the first different information processing apparatus when the compressed and encoded data is present, and that searches for the second different information processing apparatus having content identical or similar to the deleted content when the compressed and encoded data is not present.

An information processing method comprising:

• detecting whether a second different information processing apparatus having content identical or similar to content as a deletion target is present on the basis of meta data allowing identification of details of the content as a deletion target received from a first different information processing apparatus when the first different information processing apparatus deletes the content as a deletion target, recording information of the second different information processing apparatus and the meta data of content identical or similar to the content as a deletion target and transmitting a detection result that the second different information processing apparatus is present to the first different information processing apparatus when the second different information processing apparatus is present, and transmitting the detection result that the second different information processing apparatus is not present to the first different information processing apparatus, receiving compressed and encoded data obtained by performing a compressing and encoding process on the content as a deletion target from the first different information processing apparatus, and recording the received compressed and encoded data on a recording medium when the second different information processing apparatus is not present;
• and
• searching the recording medium for the compressed and encoded data on the basis of the meta data received again from the first different information processing apparatus when the first different information processing apparatus is instructed to reproduce the deleted content, transmitting the compressed and encoded data to the first different information processing apparatus when the compressed and encoded data is present, and searching for the second different information processing apparatus having content identical or similar to the deleted content when the compressed and encoded data is not present.

A program causing a computer to perform a control procedure comprising:

• detecting whether a second different information processing apparatus having content identical or similar to content as a deletion target is present on the basis of meta data allowing identification of details of the content as a deletion target received from a first different information processing apparatus when the first different information processing apparatus deletes the content as a deletion target;
• recording information of the second different information processing apparatus and the meta data of content identical or similar to the content as a deletion target and transmitting a detection result that the second different information processing apparatus is present to the first different information processing apparatus when the second different information processing apparatus is present;
• transmitting the detection result that the second different information processing apparatus is not present to the first different information processing apparatus, receiving compressed and encoded data obtained by performing a compressing and encoding process on the content as a deletion target from the first different information processing apparatus, and recording the received compressed and encoded data on a recording medium when the second different information processing apparatus is not present;
• searching the recording medium for the compressed and encoded data on the basis of the meta data received again from the first different information processing apparatus when the first different information processing apparatus is instructed to reproduce the deleted content;
• transmitting the compressed and encoded data to the first different information processing apparatus when the compressed and encoded data is present;
• and
• searching for the second different information processing apparatus having content identical or similar to the deleted content when the compressed and encoded data is not present.