HELP!

My Win 7 download just finished...sooner than I was excepting, I might add, since it started out saying it would take 5 days to finish, and it has not nearly been that long.

Actually, just a couple minutes ago, when I checked it, I think it said it still had a day and some odd hours left to finish the downloading....but now it just finished, and guess what? :wtf: It says its 783 MBs, instead of the 3.2 (or something like that...) GBs it was at first! :S So I'm wondering if the download actually finished, or got screwed up somewhere along the line, so its now "done", and with a less file size??? :S Or could the Firefox download manager have simply misjudged the file size, and/or time it would take to complete? I understand that it is only an estimate...probably rough at best, but I don't think I have ever had a download so off from the prediction! :scared:
Can someone please explain this, if they can?
Thanks! :brows:
-Coolname007