Always respect copyright. Use FFmpeg on files you own or have explicit permission to modify.

ffmpeg -i "Party.Down.S02E05.mkv" -itsoffset -0.15 -i "Party.Down.S02E05.mkv" \ -c copy -map 1:v -map 0:a -map 0:s? "fixed_sync.mkv" This delays the audio relative to video. Adjust the -0.15 value (negative delays audio; positive advances it). Some S02E05 releases have soft subtitles. To make them permanent (hardsub):

ffmpeg -i "Party.Down.S02E05.mkv" -c copy -map 0 "Party.Down.S02E05.mp4" This preserves the original video (H.264) and audio (AAC/AC3) streams – zero quality loss, and it takes seconds. Assuming the source is a large 1080p rip, you can compress it using H.265/HEVC to save space while keeping good quality: