backing up to usbs and external drives

i have a really large library of music which is continually updated, as well as all my files for uni/college that are also changing pretty much every day. to back these up i periodically transfer files over to the usb/hardrive. however this really doesnt work, as i dont really know which files i have changed and which ones are new etc. is there a way to transfer files based on their last edit date/any other more efficient way to make sure I dont have doubles and make sure i actully transfer them all over?

Discussion is locked
Reply to: backing up to usbs and external drives
PLEASE NOTE: Do not post advertisements, offensive materials, profanity, or personal attacks. Please remember to be considerate of other members. If you are new to the CNET Forums, please read our CNET Forums FAQ. All submitted content is subject to our Terms of Use.
Reporting: backing up to usbs and external drives
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
- Collapse -
Well if you copy and Windows finds
- Collapse -

thanks man, yeah this is what i do at the moment, but the files i have updated such as my class summaries im a not quite sure if i have changed and whatnot, and some files have the same names but are different things, probably an error on my part,

- Collapse -
Re: backup

Different files with the same name can only exist in different folders. So if you copy files from each different folder to a different folder, that's no issue at all.

Changed and new files have an 'archive' attribute, and any good backup program clears that, so the next run it will only read the newly changed and newly created files. And, indeed Windows Explorer is not a good backup program.

For a GUI based backup program, have a look at synctoy or syncback.
For a command line backup program (so your setup is in a .bat file) have a look at xcopy or robocopy (standard Windows tools) or xxcopy (free utility).

CNET Forums