If you are feeling frisky and have an understanding of linux you could try and use Knoppix.
Knoppix is a bootable version of linux that has a cool looking desktop. You download the ISO, burn it to disk, then you boot to that disk and ensure that the drives are plugged in. Then it should appear (sda1 or something like that). Then you should be able to see all the file in the directory you are having a problem with.
Extracting the data can be a little tricky, you can't just copy it to the new hard disk (linux can't really write to a windows drive - but it can read from it) You can however put a PEN DRIVE in and copy to that.
Not the easiest answer but it is the way I tend to do it if Windows is playing up.
If you want to know more look for data recover with knoppix in google.