[smtddr]

Wait... this isn't one giant terabyte zip file we're talking about right? This is a bunch of 3 - 5MB jpgs, some 75MB-300MB video files? That accurately describes the media I have starting from 3 years ago when my daughter was born.

A failed upload only interrupts the file currently being uploaded, not the previously successful ones.

[joezydeco]

Agreed. "Assuming Dropbox can recover from partial uploads" meaning Dropbox can pick up where the upload stopped and keep going. But let's say it's halted at 99%, if Dropbox has to re-check every single file from the start to see if it's in sync, then there's gonna be a penalty there too.

[rsanders]

Syncing files is pretty much Dropbox's core business. Of all the things to worry about them getting right, that one wouldn't concern me.