The CD turns 30: Time is ticking as the compact disc eyes obsolescence

Online storage is not recommended as it's very vulnerable to attack and loss. Don't upload your precious family photographs on there thinking they'll be safe. Hard drive prices remain high, and will likely remain so. And don't think digital files will be free from hardcore DRM (some already are poisoned with it).

8- TRACKS...well what the hell, I haven't even figured out what to do with my 8" reel to reel tapes.

I disagree that bluray will die soon, HD content eats up tons of storage, and with the new true 1080p films (most blurays are upscaled 720p now) it will take up even more.
I have TB's of storage but its not cheap to keep them up, exchange drives and run them all the time, and I like having a physical collection I can see.
Not to mention blu ray disc's hold 50GB and some new discs are holding much more.
I see bluray lasting until 2020 and no less.

Also, online storage still has a LONG, LONG way to go.

"The industry would argue that compact discs sounded better than LPs although some audiophiles would disagree with that statement."

Some audiophiles? Make that most.

"in the late ‘80s while portable "Walkman" style devices meant you could take music with you on the go without having to create a cassette mix tape."

Umm. No. There was no such thing as a CD burner then, so how would you make a mix disc?

Blu-ray discs will last well beyond 2020 in my opinion. There's no substitute for holding something physically in your hands.