Filenames starting with "G" followed by numbers are common in inventory and stock photo management.
It could be a video for a protective cover and wheel set for high-end audio equipment (e.g., Audiocenter L65S). g9077.mp4
In medical systems, is a specific HCPCS healthcare code used to identify a "prostate cancer diagnosis with limited adenocarcinoma". Filenames starting with "G" followed by numbers are