"Rod" wrote in message
...
On 04/04/2010 22:43, brass monkey wrote:
I use 2 USB HDs, problem is, they have more info on them than the pc.
I.e,
once stored on both drives I delete a load of stuff from the pc to make
more
space. So, is there an easy way to keep adding data to them without
manually
checking if it's already there? Presumably if I used an incremental
backup
it would delete files if they weren't on the pc? Or maybe not?


SyncToy.
Sync Center.
RoboCopy.
Xcopy.

Assuming Windows, depends on version what options you have. All the above
have options like "copy every file that does not already exist on the
target drive", "copy only if updated at a later date/time than the one
already on the target drive".

All are either standard components of some version(s) of Windows or are
freely downloadable.

Cheers for that, Rod.