yasir siddiqui said:
I thought there is usb port problem or hdd problem and may be you have ejected your hdd before files are copied,
so copy files again form another usb port and if you face that problem again then go to shopkeeper and replace your drive.
No, the files were completely copied and the hard disk was ejected only after ensuring they were copied. No luck on replacing the drive, though. My hard disk is more then 2 years old and the warranty has long expired.