USB HD won't mount, won't repair

[mgilliam]

As I was copying music from my external HD to my laptop after a system restore, an error message popped up (I don't remember what it said) and the disk unmounted. This happened as files were being transferred, and I got the "disk removed without being ejected; files may be corrupted" message.

I turned the drive off and turned it back on, and received this error:
"The disk you inserted was not readable by this computer."

I tried to run a repair in disk utility and got this:

Verify and Repair disk “disk1s1”
Checking HFS Plus volume.
Catalog file entry not found for extent
Volume check failed.

Error: The underlying task reported failure on exit


Disk Utility stopped repairing “disk1s1” because the following error was encountered:

The underlying task reported failure on exit
1 HFS volume checked
1 volume could not be repaired because of an error

I put the drive into a windows machine, which recognized the disk, but won't assign a drive letter to it, so I can't access it.

It seems to me that something happened within structure of the disk as I was copying files, and something got corrupted. Simply due to the fact that a windows machine will recognize the disk as well as recognize how much space is being used on it, tells me that the information is still on the drive. I just have to discover a way to retrieve it.

Any suggestions? DiskWarrior?

 

[mgilliam]

Problem solved.

I used Disk Warrior to recover the files. Just some simple directory damage.

 

[Satcomer]

Plus once it happens get a backup you can clone to because if the drive failed once it won't be to long (6 months to one year) before it really fails.

 

[djackmac]

Problem solved.

I used Disk Warrior to recover the files. Just some simple directory damage.

I was thinking Disk Warrior when I was reading your first post. DW has helped me tons of times with customers machines. Glad to hear it come through for you!