Baffled,
I have owned both and here are my impression. The Sony SCD-1 has a much quieter background and has a more clinical and sterile sound. It does nothing wrong, mind you, just in comparison to the Trivista the sony sounds a bit digital sounding and mechanical. The Trivista has an engaging midrange bloom that lets you feel the emotion of the performers. The Sony seems to skew more to the techincal aspects of the music. The sony by no means is not a slouch but I would take the Trivista any day over the Sony SCD-1. Like i said that is my opinion