: Parents or local videographers capturing "10-year-old" (10-yo) prodigies during state or regional meets.

The .mpg extension indicates a file, which was the native format for DVDs. In the context of gymnastics:

In the early 2000s, the gymnastics community saw a surge in the digital distribution of meet footage. Before the dominance of YouTube and social media, "High Quality" (HQ) MPG files were the gold standard for enthusiasts and scouts looking to analyze technique. These files often originated from: