No. Packfiles. <a href="http://repo.or.cz/w/git.git?a=blob;f=Documentation/technical/pack-format.txt;h=1803e64e465fa4f8f0fe520fc0fd95d0c9def5bd;hb=HEAD" rel="nofollow">http://repo.or.cz/w/git.git?a=blob;f=Documentation/technical...</a><p>You need to know about them if you look deeper into how synch is negotiated