It's super compressed but it's the same super compression that is on any DVD so for any surround audio source a consumer would have it was perfect. The only pe

It's super compressed but it's the same super compression that is on any DVD so for any surround audio source a consumer would have it was perfect. The only people who would lose out on using TOSLINK was someone listening to a surround SACD (not exactly common). It was never updated for the higher bitrates on Blu-ray, so that's when it fell out of favor.