Apologies - I previously conflated them as "remasters/remixes", but missed the 2nd part in my statement. 🙂
But yes, it would take a remix to, as you say.
I think remasters give an opportunity to use better equipment to create the final product, maybe with less effects & adjustments in the (ahem) mix to get in the way of what comes out of the speakers.
I've also picked up a few HD-audio tracks; they can be a (ahem) mixed bag too.
FYI, I'm just in the process of auditioning a cable to connect my pre-amp to my power-amp; it's quite interesting.
I'm not sure at what point someone changes from being an audiophile to being an audiophool, but if you can hear it then it doesn't matter whether someone else can't (or won't).
(I'm a member of the Steve Hoffman forums.)