I do the same and don't have a problem, LP2 is great for portables. I guess if one was sitting in front of their system for critical listening then put on the original source :-) Honestly I was listening to one I thought was SP but was LP2. I really believe sometimes we can already put a preconceived idea into our heads when we 'know' what is in the machine. Honestly for me I can say that but there are some that have a better discerning ear so they record in the SP mode. That is what makes the Minidisc such a wonderful format!