ditton,

tcpip (the protocol for most / all networks) is incredibly robust - if it wasn;t the internet wouldn;t work - this is how data gets from your pc to the squeezebox. also the hdd will have ram buffers and the drivers may also be buffering using main pc ram too. also the sb2 has a huge (30 seconds for natively decoded flac about 15 seconds for wav) ram buffer in it which the sb uses to cache data recieved over the network. add to this the fact that cd is about 1.4 megabits per second (iirc) and a standard wireless network is 54 mbps (wired is about 100 mbps) so data could be resent a fair few times before buffers would underrun.

all in all i'd say that (with a squeezebox 2) is as close to running off a ram buffer as possible - without actually running off one... if you see what i mean.

cheers

julian.