anujkawasthi 0 Newbie Poster

Hi All,
I am a new member of this forum.
i have some query related to USB device.
Actually , i want to copy a file/ folder by sector or file level
from One source volume to destination volume.

Main requirement is this that:
a) Source Volume to Destination Volume copy by sector.
b) Source Volume to Destination Volume copy by means of file
c) Data verification using bit by bit maens Volume to Volume integrity by means of sector.
d) Data verification : Volume to Volume integrity by means of file.

It's urgent, please give me some information or provide some link, source code to do this.

Thanks & Regards
Anuj Awasthi