The RAW files are just false positives and totally garbage. Did you actually ask your client about the value of her data? The problem you have now is that if you give her the drive back, it is in worse condition than when you received it because of a mistake that you made. (now that you know, I'm sure you won't make the same mistake again.)
So, I seriously suggest you talk to your client, explain what is going and confirm that she doesn't want the data recovered off the drive, sell her a replacement and move on. You might be surprised to find out that they may actually choose the data recovery route, thus why I recommend on asking these questions before any in-house recovery attempts are made.