The movie stored on the disk will be heavily compressed. Each frame will have been de-compressed for display, so assuming a 32bit colour-depth and a 1920x1080 screen, each frame would take up about 6MB. At 24 frames a second a two-hour movie would take up about 1TB of space.
Before it could be distributed, the 1TB would have to be authored to identify key-frames and so on. Very time consuming.
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The movie stored on the disk will be heavily compressed. Each frame will have been de-compressed for display, so assuming a 32bit colour-depth and a 1920x1080 screen, each frame would take up about 6MB. At 24 frames a second a two-hour movie would take up about 1TB of space. Before it could be distributed, the 1TB would have to be authored to identify key-frames and so on. Very time consuming.