In many digital libraries, alphanumeric strings like "NAN" serve as series identifiers, while the trailing numbers (0146-02) pinpoint the specific volume or scene.

Often indicates a specific scene or part of a larger compilation. Why Quality Matters

For information regarding specific digital media releases, consulting official production catalogs or verified media databases is recommended.

Moving from 720p to 1080p (Full HD) provides a significant jump in clarity.