: This usually refers to the audio specification. "DD5" or more commonly written as "DD 5.1," stands for Dolby Digital 5.1. It indicates that the audio is encoded in a 5.1 surround sound format, which includes five full-bandwidth channels (left, center, right, left rear, right rear) and one low-frequency effects channel.
: This usually refers to the audio specification. "DD5" or more commonly written as "DD 5.1," stands for Dolby Digital 5.1. It indicates that the audio is encoded in a 5.1 surround sound format, which includes five full-bandwidth channels (left, center, right, left rear, right rear) and one low-frequency effects channel.