In the Mission "Nakayama-rama" Claptrap has you gather these data recorders to learn more about the evil villain called Professor Nakayama

Nakayama-rama is a mission from Sir Hammerlock's Game Hunt DLC in Borderlands 2

Summary

Keep your friends close...

Mission Type

Side Quest (Optional Mission)

Starting Location

Roothill Village

Starting NPC

Claptrap

Objectives

Pick up data recorders 0/4

Turn in: Claptrap

Locations

The Sun Swamps

The Ardorton Docks

Grifter's Reach

Description

Find Nakayama's lost audio diaries

Rewards

XP and money

Enemies

Witch Doctors

Savages

Fan Boats

Scaylions

Mission Items

Data Recorders

Mission Briefing

Know thy enemies, minion. If you are going to take down Professor Nakayama, you'll do well to learn everything you can about him. I think the tool lost some of his audio diaries. Go find them.

Mission Debriefing

Nice job finding those echoes, minion. Come on back when you are done.

You've learned a little something about Nakayama. Nothing that will actually help you kill him, of course, but still - something.

Walkthrough

Follow the waypoints on your minimap and collect all of Professor Nakayama's Data Recorders.

Use a Fan Boat to help you navigate to your destinations, but watch out for Enemy Fanboats. The data recordings are located around Scylla's Grove in The Sun Swamps, The Ardorton Docks, and Grifter's Reach

Return to Claptrap in Roothill Village after you have gathered all the Data Recorders.