Although the software worked fine on my Windows 7 laptop, I received the "recording finished" message after one minute on my Windows 8 desktop. Eventually I discovered that even the one minute recording was faint and muffled. I then re-tried and found that at level 5 the meters were not moving !! When I amended the microphone sensitivity from 5 (the recommended value) to the 35 (The value recommended for Vista !!),the recording was much clearer and as a bonus I did not get the "recording finished" message.
Perhaps the software is designed to finish early if the meters do not move.