The problem could be solved by placing PCM audio into some other container format. WAV proliferates for historical reasons but perhaps we need a slightly more m

The problem could be solved by placing PCM audio into some other container format. WAV proliferates for historical reasons but perhaps we need a slightly more modern audio container format that will accept any kind of bit stream + metadata, etc. I suppose MKV could fit the bill today. Are there any other good candidates?