for some reason the movies anywhere version doesn’t sync with much of the soundtrack cd or ‘for your consideration’ mp3s in pluraleyes. i suppose one could do it manually. the score-only file i found is just 96k aac.
That’s the unencrypted version you can rip from the movies anywhere website. It’s also available through iTunes and through the movies anywhere Roku app with a higher bit rate of, iirc, 160k. The trouble is that it’s encrypted, so one would need to capture the decoded output, much akin to capturing laserdisc PCM audio. In addition to that, it’s also available in 5.1 through iTunes, which, again, can be captured/ripped in the same manner as LD ac3 using an AppleTV.