Actually MD was everywhere, except in the US. There was a Vaio computer with integrated MD drive and you could store data and audio on it.
LGR has a nice video about it:
There was also a Vaio laptop that had an MD drive, it didnt support data though:
MD audio was compressed with proprietary ATRAC, so sending it out would only make sense if the other end supported it. On the other hand the analog audio would clearly be more compatible.
However, those MD decks supported TOS link for input, but had some bits flipped to disallow CD digital recopy.