Error formatting an external hard drive
Sorry in advance about the basic nature of this question:
A friend of mine gave me an external hard drive. I followed this handy little guide to format it up to step 8. On attempting to erase and reformat the drive, an error message shows which reads "*Disk Erase failed:* Disk Erase failed with the error: Input/output error."
I'm not exactly tech-savvy. I have no idea what's wrong. The friend who gave it to me is a mac guy, and apparently the drive worked just fine on his machine. Can you please help me?
Thanks,
Lo P.
MacBook, Mac OS X (10.4.8)