You have to use some force to get into the DX lasers...you can either use a sharp knife, and place it in the crack where the laser meets the aperature cap, rolling it, and wiggling the knife back and forth, or you drill a hole in a block of wood just a little bit smaller than the laser - you cut the block of wood across the drilled hole (completely in half) and use that to sandwich the tip of the laser in a vise while you pull gently, and twist to get teh laser apart. Make sure that however you end up pulling that thing apart, that you ensure the button is facing down - that way if you pull the module out, it will not break (hopefully)