Nsfs324engsub Convert020052 Min Best
020052 likely means 00:20:052 (20 seconds and 52 milliseconds) – but that’s oddly short. More plausibly:
So: Convert to 2h 0m 52s length, best quality per min (CRF/VBR optimization).
"Min best" is a contradiction unless you understand perceptual optimization. The "best" quality for minimum size means using: nsfs324engsub convert020052 min best
Example: A 2-hour 1080p h.264 file at 8 Mbps = ~7.2 GB. The same at h.265 CRF 22 = ~2 GB, visually identical.
In HandBrake:
In the world of Japanese video encoding, NSFS is a production code used by the label NSFS (Nakano Sun Festa Series), distributed by FAIR & WAY. NSFS-324 is a real title: "The Rowdy Wife’s Immoral Affairs" (rough translation). However, your keyword may refer to a leaked, fansubbed, or bootlegged copy.
Typical attributes of NSFS-324 raw files: 020052 likely means 00:20:052 (20 seconds and 52
Your mention of engsub means you have an external English subtitle file. This is common in fan communities.