Many online courses (like those on , Udemy , or university portals) use the "Part X of Y" naming convention.
: "VRG20" likely refers to the course code (e.g., Virtual Reality Group 20 or Vocational Resource Guide 20), and "2of2" indicates this is the concluding second half of that specific lesson. VRG20-2of2.mp4
: Large video files are often split into smaller segments for easier rendering or uploading. Many online courses (like those on , Udemy