Why am I able to view the inertial and parametric data for my flight in the Vision 1000 Playback Utility, but cannot hear the audio or view the imagery?

If you are able to view inertial and parametric data of a flight but cannot see the imagery or hear the audio for the flight, the imagery and audio was recorded over by the Vision 1000. Due to storage limitations of the Vision 1000, only four hours or 10 power cycles’ worth of imagery and audio data can be stored on the SD card. However, 200+ hours of inertial/parametric data can be stored on the SD card. If inertial/parametric data is available for a flight but imagery and audio are not, a black screen will replace where the imagery is typically shown in the Vision 1000 Playback Utility.