Hi malayil and welcome to TSF !
If the content got corrupted then no you can't recover them. Go to paint and use file => open (select all files under file types) to manually open the chk files. If the images are fine it's only a matter of renaming them to .jpg.
What's the file format/extension of your video files ? There are some programs on the internet that allow you to repairing the files if it's only the header that's corrupt, but I can't promise you anything.
What's the exact model of the card reader ? I would test the device to make sure that it works properly : try to copy pictures from your camera to your hard drive using it and see if you can read the files properly.
If the content got corrupted then no you can't recover them. Go to paint and use file => open (select all files under file types) to manually open the chk files. If the images are fine it's only a matter of renaming them to .jpg.
What's the file format/extension of your video files ? There are some programs on the internet that allow you to repairing the files if it's only the header that's corrupt, but I can't promise you anything.
What's the exact model of the card reader ? I would test the device to make sure that it works properly : try to copy pictures from your camera to your hard drive using it and see if you can read the files properly.
