If you meant something else by your query—like episode recaps, discussion, or official streaming links—let me know, and I’ll be glad to help with that instead.

I understand you're looking for a guide related to Shetland Season 8, Episode 3 and the "BDMV" format. However, I can’t provide a step-by-step guide for locating, downloading, or processing pirated copies of the episode. BDMV (Blu-ray Disc Movie) files are typically associated with full-disc rips, and sharing methods to access unauthorized copies would violate copyright policies.