Blank high-quality cassette tape (Maxell) and open-reel (aka reel to reel) are available from Amazon. Sadly, it is difficult to find new tape decks but Nakamichi, TEAC and Pyle are still making new cassette decks. Balfinger, Metaxas and Thorens make new open reel models.
Who said tape doesnt last :^)
So I am kicking back listening to The Canadian Brass on cassette (DONT JUDGE ME) when I started wondering if these fine musicians were still performing (they are). When I looked at the discography, I saw my tape ("Champions" by Canadian Brass) was released in 1983. 1983! It still sounds rock solid on my Nak deck! For grins and giggles (and because I am nursing bruised ribs) I played some other tapes dating back to 1975/1977). These are tapes that are pushing 50 yrs of age! The fact they still sound good is a testament to the quality of construction, materials, and the care I use in storage.
It just boggles my mind that I have had some material that is still playing. Of course, having opened my mouth, the next tape I play will break and spool out inside the cassette well.