Thanks very much for the advice, folks! I really appreciate it.
I should have provided more information about the avi, so I will do that now.
I used "Moivemaker" (MM) to "capture" the avi from the Sony model DCR TRV20, DV-tape-type camcorder via firewire. After opening MM and selecting the capture option, I get the following (get a load of that bit rate):
As the above shows, I select the "DVI-AVI" option which, as you can see, takes up a whole lotta hard drive space.
After capturing, I select the "finish" option and, voila, there's a huge video file available for whatever. I use MPC HC to play back the file. Here's what MPC says about the file's properties:
So that's as much information I have about the file, other than that the video quality of this gigantic file is excellent.
If anyone else has suggestions about how to retain the picture quality while changing the file format to something playable on either computer BD software and a stand-alone BD player, I'd apprectiate hearing it. I've already tried playing the file on a PS3 from a USB stick, but the PS3 says it's not a file it can play.