Below is the text of the eBay item mentioned at the start of the thread. They purge the auctions after awhile.:

Up for auction here is a super rare production prop from James Cameron's masterpiece, Aliens (1986)!!!    Recall the scene where the Colonial Marines were being briefed about the Alien, and the fate of the Nostromo, the night before thier mission to the Hadleys Hope colony. In this scene, Lt. Gorman says, "Anyhow, we have Ripley's report on disk; I suggest you study it." Upon reading the script, the FX crew made these disks to be handed out to each marine. However, they were ultimately not used, making this an awesome, production-made piece. Most were trashed after the filming, but a very few survived. This very rare prop relates to that memorable scene, and came directly from the FX department!!   It's a 3.5" floppy disk, painted in the elusive Brown Bess color of all the Colonial Marines equipment. The label added is the text that would have been seen in a closeup shot of the disk. It looks to have been done on a typewriter, and the vintage font dates this 22 year old piece!!   
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Bidding starts at $275 for this 3.5" floppy disc. A black floppy disc with a printed label on it.