Can't play imported CD on old iMac.
I have an imported CD of a rock music album in which you can download the music on iTunes only if you're in the U.K. or Australia (or possibly the European Union), but is not available for U.S. iTunes users. The CD is from the E.U. I can play the CD on my U.S.-based offline stereo system (consisting of a ten-year-old Sharp boombox), but I can't play it on my old iMac and it kicks the imported music CD out, which still has Snow Leopard and the version of iTunes that can only play on Snow Leopard. My new iMac does not have a CD drive.
So what is the cause of this? Is it that U.S.-based Apple computers are not programmed to play imported CDs or is it that the OS on my old computer is so antiquated it won't play any CD? About a year ago, I tried to put in my old iMac a CD that contained spreadsheet documents of registered voters from my U.S.-based county's election division, but that it also kicked the CD out without reading it, just like it kicked out my imported music CD.
iMac, macOS Sierra (10.12.3), Avid Media Composer v8.8