this is partly to do with digital formats being able to handle a much larger frequency range as well as a much wider stereo field. Some compression plug ins when they are heavily compressing the sound seem to create a broader stereo field as well (not sure why this is but im sure someone will know) the problem then arise's when you come to cut the vinyl and have to mono some of the signal to get it within the ranges vinyl can deal with (this is a very common process) when you do this sometimes if the compression has pushed the stereo field too far a lot of your mid and top will disapear.
best solution is to try and check the mix in mono as well as stereo when mix it down if it still sounds cool chances are you wont have a problem.