Checking backed up data for corruption?
I have a lot of information stored on an external hard drive which I periodically back up onto my computer's hard drive.
When I say backup I mean I just delete all the current files and copy+paste the new ones. But this kind of worries me because of the possibility of some data being corrupted in the process.
What's a simple way to backup my data but also have it check to make sure none of the files have been corrupted while in the process transferring?
Creating a compressed archive of my external HD and then uncompressing it to check for errors sounds like it might work, but I want something that I can just hit a button to start backing it up and walk away without much effort on my part.
It seems like there should be a checkable box in the file transfer progress bar that says something like "compare original and copied versions bit for bit" or something.
CPU: AMD Phenom II X4 965 @ 3.5GHz
GPU: MSI GTX 260 w/896MB DDR3 @ 655MHz
RAM: Kingston HyperX 8GB (4x 2GB) DDR3 2000
HDD: Samsung Spinpoint F3 1TB (2x fake RAID0)