hfs partition recovery (mac osx external drive)

[bledd]

my housemate's lacie drive has started messing up, it doesn't mount as a drive anymore and the mac equivalent of windwows disc management shows it it has no partitions (something must have messed the partition table or something)

what tools can i run on the drive to recover the data?

i'm a windows user, so would prefer to work with ultimatebootcd or similar, but can use his mac if i need to

as usual, it has all his 'important stuff' on it, and being a noob, he has no backups

thanks in advance -tried the seagate (its a maxtor drive) tools, it didn't come up with much, and i tried testdisk on it, but it said something was corrupt on the drive, and couldn't find the partition, it also knew that it was a 120gb drive, but said about a problem that it thought it was an 80gb drive..

 

[MagicBoy]

You could try DiskWarrior.

 

[Beepcake]

Even with no partition data testdisk can usually recover things with the correct options.. takes flippin' ages though. One of my minis trashed my external drive when it crashed, no partitions listed, and testdisk scanned the drive and recovered it fine.