Optical disc having indication portion

An optical disc comprising a first disc body, a second disc body which are coaxially disposed, and a bonding layer interposed between said first and second disc bodies for bonding said first and second disc bodies to each other,

• said first disc body comprising:
• a first disc substrate of light transmissive type having a first information record surface including an information not-recorded region, where pits or grooves carrying information signal are not formed;
• a first light reflective layer partially disposed on the first information record surface in the information not-recorded region in order to form an indication pattern on said first information record surface in the information not-recorded region;
• and
• a first protection layer disposed on said first light reflective layer and a portion of said first information record surface in the information not-recorded region where said first light reflective layer is not formed,
• said second disc body comprising:
• a second disc substrate of light transmissive type having a second information record surface including an information recorded region, where pits or grooves carrying the information signal are coaxially or spirally disposed;
• a second light reflective layer wholly disposed on the second information record surface in the information recorded region;
• and
• a second protection layer disposed on said second light reflective layer,
• said first and second disc bodies being bonded by said bonding layer such that said first and second protection layers are opposed to each other.