I'm sorry, my bad.
It turns out to be the Pro version Trial (17 days left)
The problem still remains
Will be really grateful if you can help for I am considering buying the software.

Hello
I am using the freeware version.

The problem is the following:
The program works and I am able to record from an IPTV m3u file I have, BUT...
When recording in different drive (D:\ in my case), my C:\ system disk is being filled up to the limit with an unknown buffer file which I don't know ...