The latest Olympus digital voice recorders come with the ability to update their firmware as and when Olympus release new updates. The firmware is essentially the operating system that runs your digital voice recorder so it is a good idea to always stay up-to-date with any new firmware releases, much as you do with your Mac when new OS X operating system releases are made and on Windows with security patches and fixes. Firmware updates will improve the usability of your recorder, fix any minor bugs and often add more features or improve usability.
read moreHow To: Olympus DM-3 / DM-5 Firmware Upgrade On Mac or Windows