What about fansubs? The right people could tell you which sub groups are the most trustworthy.<p>Perhaps another option could be incorporating music lyrics, as there are many sites that list Japanese, romaji (romanized Japanese), and English lyrics beside each other that you can scrape.<p>In case you didn&#x27;t already know, subs.com.ru is a great source of anime fansubs (no video, just the subs).<p>There&#x27;s also opensubtitles.com, but I&#x27;m not sure how to heuristically determine what the quality subtitles are.<p>I can understand if you&#x27;re hesitant to use unlicensed translations, but I&#x27;ve found that licensed subs hardly compare to a quality fansub group.