Removing answered ones only 2 is left:
(2) Is there a lower limit on how much the bit rate can be reduced when Architect tries to reduce the video to fit a 4.7 gB storage space? The original was 6.5 GB; I tried 3.3mb/s and got about 5.6; 2.5 gave 5.6, 2.2 gave 5.6. What is the lowest bit rate allowed?
(2) Is there a lower limit on how much the bit rate can be reduced when Architect tries to reduce the video to fit a 4.7 gB storage space? The original was 6.5 GB; I tried 3.3mb/s and got about 5.6; 2.5 gave 5.6, 2.2 gave 5.6. What is the lowest bit rate allowed?