In the 1990s all internet data was transported by snails using these things called AOL CD-ROM packets.
With the TC-AOL-CD-ROM protocol, you had to keep on gluing a copy of the same CD to another snail every day and sending it off to the recipient, until you get one back confirming the reciept.
Well, that one would be upcycling of trash.
But from my experience of the rate of degradation of DVDs, the ones in the landfills would mostly be reduced to plastic discs, with the data-retaining material eroded away and mixed with other particulate matter