Can't format an external HDD :Error: -9944: File system formatter failed I have MacOs 10.6.6 and a Western Digital external 2.5'' HDD USB 3.0 pre-formatted to NTFS. I try to format the drive do HSF+ with DiskUtility program, but it says:
Error: -9944: File system formatter failed

I think I've tried almost all combinations; I tried to set up 1 or 2 partitions with different sizes; journaled or not, but nothing works.

I don't care about the data; I just need the drive to be HFS.
maybe you can try using gparted on a linux livecd?