Native FCPX archive function - vs - copy of SD card contents
I have only just noticed the Archive function that is located within the Import window in FCPX.
I realise it has probably been there for years - but for some reason I never noticed it.
For purposes of backing up my raw footage I have simply been keeping a copy of the contents of every SD card I shoot.
My question is, should I simply carry on as before? Or are there advantages to using the native Archive function that FCPX offers?
iMac (27-inch, Late 2013), Mac OS X (10.1.x)