[cscobra]

I've heard E.R.A. almost exclusively. However, I also have an old VHS promotional tape from E.R.A. (probably early 1990s). During the tape (about 20 minutes long), the announcer clearly says "era" several times, and "E.R.A." a couple of times. Even back then, I thought that "E.R.A." sounded better. I still do.

Also, the factory phone in New Britain is always answered "E.R.A" whenever I call, so that's probably a good indication of their preference.