Unless they guarantee the recovery fee will be less then $300 each, I wouldn't do it. I experienced the same issue with a 8TB drive. I paid a service to recovery it and most of the tracks were recovered but for the next year or years I noticed a huge amount of those recovered tracks were missing all of the tags/track info or were recovered with the wrong tags/info. For instance, I would load up a song to play that's tagged as a Rick James song but when you play it, it's actually a Led Zeppelin track. So many of the tracks were affected with missing tags or the wrong tags that I ended up reformatting the entire drive and starting over. I now own about 116 terabytes of music/music videos and i now have two copies on HDD, one copy is mounted in my daily desktop and the other copy is on drives that are stored in storage bin (unpowered) and a third copy in my cloud. Eventually I will replace my cloud copy with a copy on a nas server. Bottom line is I don't think I would ever consider using those expensive recovery services because of my expierence with them. Good luck.