This appears to be a reference to , with "BD9" likely indicating a Blu-ray Disc 9 (a compressed 1080p Blu-ray rip) —common in torrent/file-sharing naming conventions.

El Presidente S01e04 Bd9 |top| File

This appears to be a reference to , with "BD9" likely indicating a Blu-ray Disc 9 (a compressed 1080p Blu-ray rip) —common in torrent/file-sharing naming conventions.