trying to compare my hard drive with my external drive to determine what folders (200gb worth) are missing from the ext drive.
there is a difference of about 200gb between the 2 drives.
is there a sodtware that will do that. if not i have to manually compare folders and i am going blind doing it.
took me awhile but i manually compared each and every folder on my pc with those on the external drive. got it down from a discrepancy of about 200gb to 44gb. i can live with that.
sorry it took so long to answer.
finally took your advice - purchased bc and have just run a folder compare. now what????
my current lr catalog is synched to the pictures folder on my pc. it is that cat that i want to import into my new imac. i have done the following:
formatted my 2tb drive to fat 32 and copied all photo files from the other ext drive to that one. i have a blank 3tb drive where i intend to store all photo files and it is that drive that i will synch with the lr catalog.
the pc sill has 48gb mre photo files than the ext drives.
i can sync all files and folders between pc and both ext drives using bc but won't that screw up the catalog and result in lots of missing pics?
most of the folders in the ext drive are black with some blue and some blue/red. many folders in pc are either blue or blue/red.
There are many on this forum with more experience moving from PC to Mac.
BC just allows you to assure all files you want to be wherever are there where you want them, and compare if files existing in both places, etc...
That said, I think yes: when you load your catalog on the Mac, all the photos will appear missing at first. But I think it's just a matter of showing it where top-level folders are and then it will find everything in the rest of the tree. But, I've never actually done that m'self, so take with salt.
Maybe somebody else will have more specific experience/advise...
(I dunno what blue/red means - but I would think you want all photos copied to new (ext) drive - none short...)
One thing for sure: make sure you have a backup, and/or practice on a test catalog so you don't hose your only/main catalog while you're fumbling.