Wait until you get a really complex scene if you think two minutes is long. :) Basically it takes so long because it writes then deletes temp files (which that number file may be) to create the .br5 file. Big suggestion, don't click anything while it's doing this until the menu bar at the top disappears again. Even if the % done says it's finished saving don't beleive it until the hard drive stops and the menu bar disappears, otherwise you may corrupt your file. So far knocks on wood I haven't had that happen yet because I wait.