ok i've got @ 2300 cd's in itunes .
they live in a second hard drive in my laptop .
i have 3 removable / portable drives .
i was 'manually ' adding anything new i added to the laptop to the 3 other drives . as usual i screwed up and missed adding some tunes

what i'm hunting for is a program that will compare what i have on the laptop and add it to the portable drives .
i've tried a few back up programs , but they back up for 'recovery' .
which is ok ; but i take the portable drives with me sometimes and the recovery software won't allow me to just play / select tunes off the drive .....
any ideas ??
tia
derf