Both methods at the same time, showing OSWORD works but SAVE doesn't.

Of course, no data has actually been written, because Laservision Disc Drives don't have a write head. The LV-ROM player is specially programmed to pretend that a write operation has succeeded, although no data is transferred to the disc, to allow the VP415 to be used in systems which time-stamp a file every time it is read.

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