I have confirmed playback of only the beginning portion of tracks 1-3. Tracks 4-12 are unopened, so I have not confirmed playback. I received these as a hand-me-down and have been using them. I believe they are from around 2012. If I cannot prepare a cardboard box, I plan to wrap them in bubble wrap and ship them in an envelope. Please purchase only if you understand this. Please refrain from purchasing if you are sensitive to these issues.