:

It is not a verifiable, legal, or properly identified media asset. Any attempt to present it as a real title would be misleading and potentially unlawful.

: This is a production code typically associated with Japanese adult media (JAV). These codes are used by studios to catalog and identify specific releases.

The steps above are general and might need adjustment based on where you're located and the specific platforms you use. If "NSFS-271" refers to a very niche or adult content, ensure you're using appropriate and safe-for-work resources to find your subtitles.

| Edge case | Behaviour (default) | --strict behaviour | --relax behaviour | |-----------|---------------------|----------------------|---------------------| | that must be split | Warn → keep as‑is (minute‑exclusive rule may be violated). | Abort with error. | Merge with next subtitle if same speaker; otherwise keep as‑is. | | Exact minute‑boundary start ( 00:12:00,000 ) | Accepted – start is inclusive, end must be < 00:13:00,000 . | Same. | Same. | | End exactly at minute‑boundary ( 00:15:59,999 ) | Accepted – already exclusive. | Same. | Same. | | End exactly at next minute ( 00:15:60,000 ≡ 00:16:00,000 ) | Truncate to 00:15:59,999 . | Same. | Same. | | Non‑monotonic timestamps (e.g., out‑of‑order subtitles) | Error – timestamps must be strictly increasing. | Abort. | Attempt to auto‑reorder; if impossible, abort. | | Embedded styling tags that contain commas (SRT) | Parser uses stateful CSV logic to avoid splitting inside tags. | Same. | Same. |