It was shot on 16-millimeter film and then transferred to laser disk.
Meantime, for just watching the film, there is always laser disk.
Yet the demise of the laser disk is hardly at hand.
Video documentation on laser disk does not seem to trouble him, however, even though one can turn off the image and listen to the sound.
He predicts that the production of laser disks will stop within a year.
Many new video releases are still confined to laser disk.
"People hear about the new technology, and when they go into the store looking for it, the thing they find is laser disk," she said.
The information will be stored electronically, perhaps using the technology of laser disks.
There's a catalogue of 10,000 laser disks to satisfy that need.
This narrow selection seems odd, since the entire program, less than an hour long, takes only one side of a laser disk.