Rockman 7 isnt on the PS1. 8 was always a PS1 game though fyi (and better on the Saturn, PS1 is missing two boss fights)
But 1-6? Those are the complete works games. Great ports. Next to a RGB modded Famicom its the best looking versions (in my opinion), and there's some great extras like the new soundtracks (especially for 4-6), extra options, and Pocket Station Support. Ive got them all twice over (once as individual releases, and once as the PS1 "Books" releases that are part of a big boxset)
The CW games did sorta get ported on the PS2/Xbox and GC as the Anniversary collection, but the port job is sloppy, the graphics look weirdly smudged, and its got audio issues + missing a bunch of options from the PS1 versions, so not as good.
Ah your right I did a glance at GameFaqs last night and swore I saw MM7 too.
It's too bad that and Rockman Soccer never really got a port outside of SNES. (at least that I'm aware of)