: True 5.1 surround sound is typically delivered via DTS or AC3 (Dolby Digital) formats, which support six discrete channels. Standard MP3s are 2-channel; however, "MP3 Surround" is a rare extension that allows 5.1 but requires specific decoders.

Dolby DTS (DTS:X or DTS-HD Master Audio) is a audio codec that compresses and encodes the audio data, allowing for a more detailed and nuanced sound.

Offers a 5.1-channel mix with high compatibility across home theaters.