MP4 : Should we feel regret for our mistakes?DOC : Should we feel regret for our mistakes?m3u8_360p : Should we feel regret for our mistakes?m3u8_480p : Should we feel regret for our mistakes?m3u8_240p : Should we feel regret for our mistakes?m3u8_1080p : Should we feel regret for our mistakes?MP3 : Should we feel regret for our mistakes?m3u8_720p : Should we feel regret for our mistakes?