On the image below (I have taken a screen shot of the record window on my computer) I am showing the available space on my hard drive.
I changed the audio bit depth and sample rate that was to be recorded, and it changed the "Memory" or available space on my drive (according to the new information).
This area shows you how much recorded space you have. I am not aware of the program stopping a recording after an hour unless it exceeds the space that is available.
Is this Audio Cleaning Lab 17 or an earlier versio
I have Windows Vista. From a specialist I have got this answer. The program has a maximum of 60 minutes depending of the problem of all the cleaning specialites.