ext hardrive problem

No

FAT32 is limited to 4 Gb files,
might be a faulty cable/interface i've had a drive that refused to transfer because it was in the wrong USB port, for some reason it would not work properly unless it was using a usb port from the mobo, not the pins.
also when that drive heats up it starts to click which leads me to belive its time to replace it
also, format your drive to NTFS and give it a go

Thanks for all the replies. Yea I;m trying to transfer a 4.81 gig file. So it's probably needs to be formatted to NTFS. Thanks