We're comparing two high-quality, Atmos-capable systems — the Sony Theater Quad and Sonos Arc Ultra with Sub 4 and Era 300 speakers — to see which comes out on top.

But fear not, as there's little indication the supply of optical media is about to dry up in the US and Europe. For one thing ...

Q: Given your recent column regarding CDs, why not write a column with recommended CD players for home stereo systems? —B.Z., ...

A former PlayStation executive believes Sony will struggle to release the PS6 without a disc drive, as PS5 owners debate backward compatibility.