Hello, I am sorry to hear that you also get this external hard disk RAW file system error. Honestly, last time, after attaching my external hard disk to a PC, I do find my external hard disk has RAW file system and cannot be accessed, too. In order to rescue my left drive files and movies, I do tried many portable hard disk RAW error recovery methods and finally have recovered most of my original drive files back at the aid of external hard disk RAW file system recovery software. Hence, you’d better also read more related data recovery articles and get clues here: Convert RAW to NTFS without losing data Learn more drive file recovery information Hope these words work for you.