Examine the used by local content aggregators.

In the West, fansubs are a niche hobby. In Indonesia, repackage is an art form. Whether it is Anoboy for anime, LK21 for blockbusters, or DrakorID for Korean dramas, the Indonesian digital underground has built a media empire by doing one thing better than anyone else:

Repacked video content involves encoding high-definition movies or series into smaller file formats (like HEVC/x265) without sacrificing visual quality, often pre-bundling various audio tracks and subtitle files into a single download or stream. The Crucial Role of "Subtitle Indonesia"

But we aren't just talking about the country as a consumer. We are talking about a specific, chaotic, brilliant engine of pop culture known as "Indo Subtitle Repack."