Does the Olympus DM-4 Digital Voice Recorder have a time out on pause, or can you walk-away in pause mode for 1 hour, come back and un-pause it on continue?

Yes, the Olympus DM2 & DM4 Digital Voice Recorders will time out after 120 minutes when left in Record Pause Mode.

Verification Source:  Olympus DM4 User Manual

Test Date: 8.2.12