For viewers relying on subtitles—whether for translation or accessibility—resolution plays a subtle but critical role. In a 720p encode, subtitle fonts (especially if hardcoded) can exhibit "aliasing" or jagged edges. This happens because there are fewer pixels available to smooth out the curves of the letters.
To ensure your subtitles work perfectly, always match the subtitle filename to the video filename. If your video is titled Prison.Break.S02E01.1080p.BluRay.x264-REWARD , search for a subtitle file that contains "REWARD" in the title. This guarantees the timing matches the specific edit of that episode. Prison Break Season 2 Subtitles 720p Vs 1080p