To keep it "Exclusive," do not compress the audio. Use "Auto Passthrough" for DTS or AC3 tracks.
Use a "Slow" or "Slower" encoder preset. It takes longer but ensures the compression artifacts are non-existent. Final Thoughts juq930engsub convert015937 min exclusive
Import the .srt or .ass English subtitle file. Ensure the offset matches the 015937 timestamp precisely. To keep it "Exclusive," do not compress the audio