Many of Digital Leisure games, from late 1990s to early 2000s were made for the DVD-i platform, to be played from the DVD interactive players. On computers, I am trying to play them through MPC-HC, but I am unable to get control over the controls. Specially the keyboard controls, instead of moving, they just control the video position.

I am doing something wrong, and taking the examples of Space Ace and Dragon's Lair, I haven't figured it out