Scandisc not working



I have downloaded cd/dvd speed 4.7.02 several times, both saving and then installing and direct install. Every time the scandisc function doesn’t work. It scans c1/c2 errors in black and doesn’t return errors. there isn’t even the heading in the appropriate columns. I have deleted it or I would have included screen shots… On the other hand the file might be corrupt so I’m not sure how good an idea it would have been to keep it. I have version 4.1 on my computer which works fine as far as it goes. I downloaded it from a cdfreak link and another link with the same results. Any Help?