I have a Gemini iKey M3+ digital recorder, which I’ve been pretty happy with. But I’ve just discovered a nasty little ‘gotcha’ in its operation.

If you switch the recorder to mono mode, but have a stereo line input cable plugged in, the device will only record the signal on the Right channel of the cable. That’s fine.

The ‘gotcha’ however, is that if you  have a signal plugged in on the Left channel (but nothing on the Right), the level meter shows that you have a signal but nothing will be recorded, as the device will be recording the unconnected right channel.