Hi All,
Since my last post I have been in (frequent) contact with the Panasonic Servicedesk. Although very helpful, I had great problems getting the the Panasonic employees to understand what is the problem. However, the last lady I spoke to escalated the issue, and I need to call them back on Monday.
I do agree with Graham (post above this one) that is seems to be a bug, not a limitation of some kind. If they can do seamless video, audio should be seamless too.
Buying a second camera is not an option, and for the kind of recording (event registration might be a better word) it would not add something.
Also, normally I do record audio on a separate device, and thanks to avforums member Rogs I know how to align the audio with video

However, while I was doing the recording that showed me the issue, I simply had no time to set up the separated system as I was late getting at the location as I was directed to a different church :-)
Anyway, just an update... If anything comes from Panasonic's escalation I will post whatever info I get; maybe it can help someone else as well.
Regards,
Peter