Lol... I thought I DID describe exactly what I tried. I was hoping someone could give me the steps they took to get the game running, rather than my having to describe every failed attempt I made. Well, let me painstakingly go through just one of my many attempts that gave me the exact same results.
First I turned on the computer.
Then I carefully placed the SimCity Enhanced CD Rom into the drive.
Then I moved all of the files into D-Fend Reloaded, a handy frontend. It installed the game for me.
For the sake of simplicity (usually, I install games to an external hard drive), I installed it right to C:\SIMCITY.
Then a SimCity CD-Rom Setup/Configuration screen came up. It told me that my digital sound board is a Sound Blaster (correct) and the Sound Blaster info is: "Addr:0220h, IRQ:7, DMA:1" (I have no idea if this is correct). It also gave me a path for the Video as "D:\SIMCITY\VIDEO" and Audio as "D:SIMCITY\AUDIO". I changed the path to C:. I verified that the video and audio files were indeed at C:\Simcity\Video & Audio. It also had "Digital Sound Status: Enabled," "Video Playback Status: Enabled," "Full Screen Video: Disabled," and "Audio Help Status: Enabled." I didn't change any of those settings.
When I then hit a key, the screen goes black, it changes to a typical old-game resolution (so I know DOSBOX is doing SOMETHING), and then it tells me "unable to play intro.mve," and that I should check the Setup/Configuration screen I had just exited.
I went through a few hours of variations of the foregoing steps, and consistently wound up with the same results.
So, now, could someone who has successfully gotten this game running please tell me the steps they took? I really appreciate whatever insight someone could give me.