Need help with Easeus Data Recovery Wizard

I have a hard drive that has been giving me trouble lately. It is a Sata HDD. I mount the drive with a usb hard drive reader. Lately it will only mount only about 1 in a hundred times. When it does I am able to get the files (mp3) off of the drive but it is very slow to copy to the new drive and the drive will unmount and mount itself over and over again. The mp3's that I do copy from the drive play fine and are no way messed up at all. Instead of copy the files super slowly like I had been doing I decieded to use data recovery software. I finally got the drive to be recognized by windows and fired up the software. The software was able to copy every single mp3 file off the drive. Now my problem is that none of the mp3's will play on itunes or foobar or any other software. Is there something I can do to fix them?

Thanks