Each packet of cigarettes or hand-rolling tobacco must carry a mark in the following form:
Each packet can carry a maximum of 1,500 bytes.
American officials said that each packet carried enough food to nourish an adult for one day.
In the case of a phone call, the packets of information carry voice data.
He shrugged, started off toward the stairs, the packet of herbs carried carefully in one hand.
Its little yellow packets carry the tagline "Made from sugar so it tastes like sugar."
So Skype keeps them small so that packets don't carry too much audio because it recognizes they may get lost.
Or he guessed that packets don't carry a proper folio of charts.
Each packet carries its own address, much as an envelope routed by the postal system.
Why they didn't change the definition so that that packet could be either carrying four digits or eight, I don't know.