But say 1 guy does it and another guy does it, but one of his files is corrupted, how am I going to obtain that file anyway, one guy might have compressed it differently than the other, so it's not like the files will be interchangeable. I still have to redownload the whole thing to get the file and if it's corrupted from the get go I'm screwed anyway. Typically these multi file rars are inside a single torrent or a single zip file so it defeats that purpose anyway.
And yeah I absolutely hate .flv as well. You can't do anything with that, like if you need to take a clip and put it in an editor or reencode or w/e.
.mp4 is not that bad anymore, seems vlc and xbmc can play it fine now, but when it first came out it was annoying.
And yeah I LOL at people who send email images in BMP format. At least use uncompressed jpg if you are scared to alter the quality, or PNG. The best is when they take a screenshot to send to the help desk, paste it in word, print it, then do scan to email. I've actually seen that lol.