Additional content management device and management method

A management device of an additional content added to an original content by using a virtual package function defined as an expanded function of Blu-ray, comprising:

• an additional content acquiring portion that acquires the additional content stored in an external storage portion;
• and
• an additional content recording portion that records an additional content acquired by the additional content acquiring portion into a predetermined recording medium, wherein
• the additional content recording portion performs an operation of detecting a hybrid recording medium that includes both a ROM area that is used only for reading data and a recording area that is used for writing data at any time, wherein
• if the hybrid recording medium is detected, the additional content recording portion records the additional content acquired by the additional content acquiring portion in the recording area of the detected hybrid recording medium, and wherein
• if the hybrid recording medium is not detected, the additional content recording portion records the additional content in a temporary storage portion built in the content management device or attached in the content management device.

A management method of an additional content using a virtual package function defined as an expanded function of Blu-ray, comprising:

• an additional content acquiring step of acquiring the additional content stored in an external storage portion by a recording/reproducing apparatus;
• and
• an additional content recording step of recording an additional content acquired by the additional content acquiring portion into a predetermined recording medium by the recording/reproducing apparatus, wherein
• at the additional content recording step, a hybrid recording medium is detected that includes both a ROM area that is used only for reading data and a recording area that is used for writing data at any time and records the additional content acquired by the additional content acquiring portion in the recording area of the detected hybrid recording medium.