How do i format a USB attached Hard drive?

Hi
I want to use a Lacie USB hard drive I have for Time Machine backup. This HD has been used on Windows XP and has some data on it which I do not need to keep. How do I reformat the disk so it can be used as a clean empty disk for MAC Time Machine?
Thanks

Can't speak from experience as I don't use TM but I'd open Utilities and run Disk Utility. Open the Erase tab. That will give allow you to erase any attached drive. Make sure you choose the Mac Extended (Journaled) format. Finally, start TM and use the Set Up button to point to the drive you wish to use.

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    How do I download videos in MPEG and other formats from an external hard drive to  a MacBook?

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