I have determined that vegas p.e. crashes when my ram shows 2.75gb of usage. I have roughly 46 minutes of edited video(mpg) divided into 3 projects so that I can safely fine tune any last minute editing and stay away from crashes. Now I need to connect the 3 projects in series and send the projects as one to archetect 4.5. I have tried cut and paste and that failed since archetect wanted to overwrite the original instead of linking them.