After trying the trial and having no noticeable frame loss with 1080p, I ended up purchasing Action. I did try a few others, but ended up either with frame loss or not being able to capture the sound.
My main use is recording web-streams that cannot be downloaded (at least not easily), such as RTÃ‰ player. For example, yesterday RTÃ‰ closed down its analogue TV service and I forgot to schedule my PC to record the live news event. They posted this event on their website, but as they now use encrypted Adobe flash, it is not possible to download it (at least not with RTMPDump), so I played it full screen and recorded it with Action.
I’m sure Action will come in use for recording other web streams later. I never thought I’d be going back to the days of setting up a taping process, i.e. getting the playback source ready and finger on the record button (F9).
The only issue I encountered is that very few encoders outside of Action seems to be able to re-encode the AVI file it produces. E.g. AviDemux gives a green screen, Sony Vegas makes the picture too dark, Handbrake says “No title(s) found” and Xmedia only recognises the sound track.