What if I check the Allow Buffer Overwrite option?

The Allow Buffer Overwrite option controls whether storing images to the buffer overwrites older images, or stop buffering when the buffer is full.

Note: default,DM050,DM060,DM070,DM150,DM260,DM300,DM360, DM370, DM080, DM280, DM470,DM580, DM503,DM8050,DM8070,DM8600,DM8700