XDJ 700 - HHD size limits

Hello, 

I mix using 1To Hdd which work fine on XDJ 1000 & CDJ 900/2000s, but not on CDJ 350 & 850 which don't have anough RAM I guess to keep up with the amount of information.  

I am looking at those XDJ 700s which look nice and I'm wondering if I might have problems using big hdds on them. 

Also is there a file/number of tracks limit like on the RX controllers ? 

Thanks