Note: If you are looking for specific actress IDs (common in Japanese media), "Sone" might also refer to a production label. Regardless of the exact video, the principles of finding high-quality subtitles remain the same.
: How release formats have changed since the early 2000s. sone 448 english sub extra quality
Often moving from standard definition (480p) to High Definition (1080p or even 4K). Note: If you are looking for specific actress