Disc storage apparatus and disc archive apparatus

A disc archive apparatus, comprising:

• a disc storage apparatus capable to store N rows of stacked M discs, wherein each of N and M indicates a positive integer equal to or greater than two;
• a first storage rack and a second storage rack, wherein
• each of the first storage rack and the second storage rack includes including a plurality of storage sections,
• each storage section of the plurality of storage sections includes a front opening and a rear opening, and
• each storage section of the plurality of storage sections is configured to allow the disc storage apparatus to be mounted or taken out through the front opening and the rear opening;
• a conveying robot configured to:
• select the disc storage apparatus specified;
• and
• convey the disc storage apparatus through the front opening of each of the first storage rack and the second storage rack;
• a disc drive including a plurality of drives configured to record on or reproduce from disc-shaped recording media in the disc storage apparatus conveyed by the conveying robot;
• and
• a disc conveying picker configured to set the discs from the disc storage apparatus into each drive of the plurality of drives of the disc drive, wherein
• the disc storage apparatus is capable to store the N rows of the stacked M disc-shaped recording media in a case having an opening on an upper surface of the case,
• each of the N and M indicates the positive integer equal to or greater than two, and
• based on the disc storage apparatus taken out from the rear opening of one of the plurality of storage sections of the second storage rack, a tray cover is configured to slide from the rear opening and cover the rear opening, wherein the disc storage apparatus is taken out with the rear opening covered by the tray cover.

A disc storage apparatus, comprising:

• a case including an opening on an upper surface of the case, wherein
• the case is capable to store N rows of stacked M disc-shaped recording media, wherein each of N and M indicates a positive integer equal to or greater than two, and
• a cover is arranged on a top disc among the disc-shaped recording media stacked in each row of the case;
• a tray cover configured to slide from a rear end of the case and cover the opening;
• and
• a locking mechanism configured to lock a state of the covered opening.

A disc storage apparatus, comprising:

• a case including an opening on an upper surface of the case, wherein
• the case is capable to store N rows of stacked M disc-shaped recording media, wherein each of N and M indicates a positive integer equal to or greater than two;
• a tray cover configured to slide from a rear end of the case and cover the opening, wherein
• the tray cover includes a close-contact section in a plurality of positions in the tray cover, and
• the close-contact section includes a spring configured to bring the tray cover configured to cover the opening into close contact with the case;
• and
• a locking mechanism configured to lock a state of the covered opening.