Recording and reproducing apparatus for photosensitive recording medium and cartridge thereof

1. An apparatus for recording and reproduction of a photosensitive recording medium, which accommodates a cartridge, said cartridge including: a photosensitive recording medium; a cartridge body rotatably accommodating said photosensitive recording medium and having an opening through which a center and a recording face of said photosensitive recording medium are exposed; a shutter assembled to an outside of said cartridge body and arranged so as to move between a closed position where said opening is closed and an open position where said opening is opened; and an RFID capable of recording disk information with respect to said photosensitive recording medium,

wherein said disk information with respect to said photosensitive recording medium is obtained from said RFID,

wherein said RFID includes: a first writing place in which an address number of a place of said photosensitive recording medium where data are expected to be recorded is written, before the recording on said photosensitive recording medium is started; and a second writing place in which an address number of a place of said photosensitive recording medium where the data is recorded, after the recording on said photosensitive recording medium is finished, so that said address numbers of the first and second writing place can be compared with each other.

2. The apparatus as claimed in claim 1 , wherein said disk information is read at least prior to reproduction.

3. The apparatus as claimed in claim 2 , wherein said disk information is read prior to chucking.

4. The apparatus as claimed in claim 3 , wherein said disk information is read before said shutter is opened.

5. The apparatus as claimed in claim 2 , wherein a pickup is moved to a recording position according to said read disk information.

6. The apparatus as claimed in claim 3 , wherein a pickup is moved to a recording position according to said read disk information.

7. The apparatus as claimed in claim 4 , wherein a pickup is moved to a recording position according to said read disk information.

8. The apparatus as claimed in claim 1 , wherein said RFID further includes a third writing place in which an address number of a place where previous recording is conducted on said photosensitive recording medium, so that when the address number in said first writing place is consistent with the address number in said second writing place, said consistent address number is written in said third writing place.

9. The apparatus as claimed in claim 8 , wherein in case where the address number in said first writing place is inconsistent with the address number in said second writing place, a backup routine is actuated according to the address number in said third writing place.

10. The apparatus as claimed in claim 9 , wherein said backup routine is to reproduce said recording medium after a place having the address number in said third writing place so as to detect a position until which the recording is accurately conducted, and conduct additional recording from a position having defective recording.

11. The apparatus as claimed in claim 10 , wherein in case where said additional recording is difficult, the address number in said first writing place is advanced by one, and the recording is conducted in a new place of the recording medium.

12. The apparatus as claimed in claim 1 , wherein a backup power supply is further provided, and when writing process is stopped while the address number of the place of said photosensitive recording medium where data are expected to be recorded is written in the first writing place in said RFID, or while the address number of the place of said photosensitive recording medium where the data is recorded is written in the second writing place, said backup power supply is used to follow up the writing process to a finish.

13. A cartridge for a holographic recording medium, wherein an RFID which is capable of being used in said apparatus as claimed in claim 1 is incorporated therein.