So my mac pro is a couple of years old, I put an extra internal hard drive in there a while back, which I also used as a backup for all my important files. now i disconnected and reconnected it the other day before formatting my main drive and installing mavericks on there. The drive shows up on finder and under disk utility, but it appears to be empty. When I go to disk utility or get info it even says that it has over 8000 files on there and that it is almost full, which it is. But even Terminal says there is nothing on there when I try to ls that folder. A friend of mine gave me stellar phoenix mac data recovery, which shows all my folders in a .Trashes > 501. I connected it to my external drive, told it to recover all my files, it was running all night but seems to have gotten stuck pretty early on, because it is saying it's in the middle of saving an mp3 and i can't click on anything. But all that I have on the external drive I was trying to back everything up on, is an empty Root folder. Can somebody give me some advice on getting my files back? ---------- even better after running stellar phoenix mac data recovery, it actually says the disk is now empty. so it basically did delete everything or formatted it to get the files back, this is so frustrating. Especially because apparently it isn't able to recover even a single file. help would be really appreciated.