More importantly than the filesystem formats, for media I hope they’re using codecs that are as simple and as close to raw as possible, eg: PCM and BMP. Chances are pretty high that with something like PCM data, even if nobody had any idea what it was, at some point somebody would stumble upon turning it into audio. I can’t imagine ever successfully decoding HEVC data without a specification.
More importantly than the filesystem formats, for media I hope they’re using codecs that are as simple and as close to raw as possible, eg: PCM and BMP. Chances are pretty high that with something like PCM data, even if nobody had any idea what it was, at some point somebody would stumble upon turning it into audio. I can’t imagine ever successfully decoding HEVC data without a specification.