Making files recorded with WM Recorder seekable. Help!!

Ok I have WM Recorder 11.3 and after recording live streams the recordings are not seekable. I can't seem to find the so caled reproses button that makes them seekable. If anyone can help that would be cool. The seekable button seems to be automatically selected, but it doesn't seem to work. Which mode is the best?


Also I have tried to convert these unseekable files to other formats so I could make them seekable. Is there a way? I mean I would try some other recorders that records whats on my screen (screen video capture software), but my files are like 4 hrs -14 hr long and everyone uses my pc so it would suck totally. Any help would be appreciated.