I have a P3A. I record video at NTSC 1080 30fps. A few month ago I looked at the specs of my video file with Media Info. It was recorded at 11.0 Mbps. Today's file was recorded at 40.0 mbps. What brought this to my attention was the fact that the 11 Mbps video could not exceed the 4GB file size limit of the exFAT SD card, but the 40 Mbps video does. The only differences between now and then are firmware updates and the use of a ND filter with manual exposure settings. I was shooting ND16, ISO 100, 1/60 fps. Does anyone know what's going on?