In these datasets, the string before the underscore is typically a , and the portion after the underscore indicates a specific timestamp or segment information. For the video you are referencing, 1. Identifying the Source
If you have the file and are having trouble playing it, or if you need to find the original source online, use these steps: 0gtq9ci55pqnjr0y71i00_source.mp4
: You can likely find the full original video by appending the ID to a YouTube URL: https://youtube.com . In these datasets, the string before the underscore