HDAD is a two-sided DVD-based disc which Classic Records is calling "Hybrid Digital Audio Disc" or HDAD. One side of the disc (VIDEO_TS folder) is DVD-Video formatted and contains 2-Channel 96 kHz/24 Bit PCM data playable on all DVD video players (must have the logo of DTS or SACD or 96/24 on the front pannel). The other side (AUDIO_TS folder) contains 2-Channel 192 kHz/24 Bit PCM data and is playable on DVD-Audio players.
More about the HDAD technology you can read here.
All other info about the disc is here. No motion picture, no song texts.