sneaker net

Also used to describe the practice of wantonly passing floppy disks around in an office rather than useing the LAN. This is discouraged because it may lead to the passing of viruses.

Though the term is usually used with irony, most people resort to sneaker net occasionally.
The reality of bandwidth versus removable media size is that, no matter how we may disdain it, it is frequently faster to carry around physical media than to transfer files via network. Never underestimate the bandwidth of a station wagon full of quarter-inch tapes.