First one taken from the original mastering : Maxi1.ogg
1992 re-release, bit-wise identical to the 1987 original CD single except fade-in and fade-out.
Second one from a remastering done in 2004 : Maxi2.ogg
Waveform comparison :
There are several differences between the samples. Of course, the volume is higher on the remaster.
Then, the equalization is different. Bass and treble were boosted on the remaster. It's a bit too much, but this track can stand it quite well. For other songs, such an equalization is often unlistenable.
Then, dynamics are compressed. Though it is technically easy to find loads of remastered songs with shortened dynamics, it is quite difficult to find a song where this is musically obvious. Especially since most pop music originals are not very dynamic to begin with.
But I think that this example is good. The original's rhythm is underlined with dynamics drums-like instruments, and the loss of dynamics in the remaster comes together with a loss of musical rythmic presence.
The remaster is also clipped, but this is not audible in this part. Several seconds later, however, the chorus has its treble horribly muddled by clipping.