(Last Updated: 10/25/2019)
Put discs and cassettes (CDs, DVDs, Blu-Ray, software, VHS, tapes) in the garbage if you cannot donate them or upcycle them into something new.
There aren't any local recycling sites for discs or cassettes, but GreenDisk offers a mail-in recycling service.
Give away, sell, or donate good condition discs. Or search online for creative ways to "upcycle" your discs into art.