Klasodeth said:

Have you checked the file sizes of all the .RAR files? I seem to recall having issues where a few of them didn't download completely (probably due to a network hiccup) and I had to re-download them.

Darth Mallwalker said:

Klasodeth has a good idea-- are any parts smaller than the rest?

If using Windows Explorer you'll probably see size in kilobytes or megabytes, not bytes.
You could click the column heading to sort by size.

That worked! Something so simple never even crossed my mind. Sincerely, thank you both for your time and effort. The trilogy can now conclude in a way I have only seen panned and scanned on VHS.