Well, miracles do happen. I turned the external HDD on but left the comp off. Let it sit for a while, then turned the comp on. Immediately it went into chkdsk. It does things so fast I wasn’t sure at first what it was finding where, but it was finding a long list of files that were “unreadable”. After watching it a bit, I noticed that the external HD was blinking in sync with the list as it grew. It went through a bunch of stuff too fast for me to see, and, DOO-DAH!, my new external HDD is working again!!! Me so happy! 

It’s got it all listed out like Maxtor and Seagate, the two drives that went out but they recovered a lot of stuff from. In fact, it’s looking like they saved quite a bit of other stuff, too. It’s just like looking at them when they were working in the comp before they died.
Now, an associated mystery: Real player has been unable to read MP4s, as well as Windows Media Player. Went through some updates, etc., and tried a few tips, but it still won’t play them… -BUT- it WILL play MP4s on my external HDD.
The MP4s used to work in either WMP or Real player, but now they won’t. In Real player, they come up and act like they are playing, but no sound or video. But the counter is going like normal.
Tried changing to .flv, but to no avail. Also tried adding file to “library/playlist” as someone suggested might help, but that wouldn’t work; wouldn’t add file.
So, I have a whole mess of stuff to watch again now, but I also have stuff I used to be able to watch that I can’t.