How about 11hrs. 10min.?! That was for about the largest Valve developer mod and the second recording due to the large size ran over 3hrs.! Normally you wouldn't see anything that long but it was either that or 16 separate recordings! one for each game map!

The last several maps run about 3hrs. 22min.

The trials will give you a couple of minutes or only a few days at best. 10min average. The avantage isn't just for game recordings but other instructional type videos with sound unless opting out while the first paid program wouldn't record any and not one word back from their support in any form.