Our very own curator of all things cut and changed from LucasArts and Sierra games, ATMachine, has captured three of the images from the video and corrected the aspect ratio (as the images in the presentation were cropped, meaning the original rooms must have been even wider). He has presented them to you in the most authentic manner possible.
These images are from lost rooms in Crystalgard. They include an alternate shot of the outside of Crystalgard, the hall of mirrors with the Chromax Conundrum, and the infamous lost room with the three sandglasses.
Source: ATMachine
