I use to make copies of my original CDs and keep the copy in my truck to prevent the original from getting damaged. My new truck does not have a CD player so I copied many of my CDs to a USB drive and plug the drive into a USB port in my truck. Now I don't have a stack of CDs in my truck (clutter). I have 43 CDs on my USB drive. I also checkout audio books on CD from my library and copy them to a separate USB drive I keep all of my audio books on.
I have also copied many of my old LPs to a USB drive and paly my old LPs in my truck.