I seem to have great difficulty in doing SP udates

First it trys downloading 2.4gb which takes forever on our reallyslow net (about 18hours)

I managed to get the SP on dvd from a distributor and i stuck thatin and then it told me to put the solidworks disc in and procededto down load 2.4 gb again. It wouldnt let me use what was on thedisc.

I then ejected SP disc which was on a rewite dvd and my vistamachine said it was going to close the session and wiped thedvd!!!!

Am i missing something or are the solidworks updates always thisweird why dont they just do them like other software so it does itwith a couple of clicks instea of juggling discs and downloadinggb's of dataSolidworksAdministration