High Definition Compatible Digital^® (HDCD^®), the proprietary process for improving the sound of 16-bit digital audio, has finally arrived. More than a dozen digital processors using the technology are on the market, and the professional encoder used to master HDCD discs is following closely behind.

Tchaikovsky: Swan Lake & Sleeping Beauty Selections
New Philharmonia Orchestra, Stokowsky
London Phase-4 SPC 21008 (LP); Ampex LCL-75008 (open-reel tape). Tony D'Amato, Marty Wargo, prods.; Arthur Lilley, eng. TT: 46:50.

These are exciting, lilting, concert-style (as opposed to ballet-style) performances of the best-known excerpts from Tchaikovsky's second- and third-most-popular ballets. (First, of course, is the Nutcracker.) The recording is a surprise, after the excesses we've heard on earlier Phase-4 recordings.

Okay, we know that Humphrey Bogart didn't utter that immortal instruction in Casablanca, but we couldn't resist, given that this issue includes Jim Austin's adventures with Apple's HomePod, the first smart speaker with hi-fi pretensions, which is featured on our August issue's cover.

For a major, decidedly American change of pace from our usual fare of Prokofiev, Debussy, Xenakis, Berg, and Beethoven (for starters), let's lighten up with Reference Recordings' latest hybrid SACD, John Williams at the Movies? Also available as a 176.4/24 download—the format in which it was recorded and which I auditioned for this review—the performances by the Dallas Wind Band under Jerry Junkin are so vivid and color-saturated that RR has chosen them for their first hybrid high-resolution wind-band SACD.