Since getting a seedbox, I have to FTP download all of my files from the box to my computer. Since it is coming from the Netherlands, I use multi-part downloading to speed it up. This splits the file into 8 parts, and then re-forms it when all the parts are complete. For whatever reason, on occasion the file is corrupted and doesn't play properly even though it says it is fine. This gets to be a problem when I download a movie I want as part of my collection, but don't intend to watch anytime soon. For example, I've seen Man of Steel already, but wanted the 1080p DTS-HD version to have on hand when I don't want to pull out my bluray. That's a 16GB file that I will want to clear off of my seedbox fairly soon, but I don't want the copy I downloaded via FTP to stop playing halfway through, causing me to have to torrent it and FTP it all over again.
What I need is some kind of "video file integrity checker." The only thing I found via Google was a .bat file someone wrote to use in conjunction with ffdshow, but that takes FOREVER. A 4GB movie took like half an hour. I could have just downloaded it again in that time. Playing the video and skipping around on the search bar doesn't always seem to catch it either unless you specifically watch it over the problem area, and for movies I haven't seen already that kind of sucks because I don't want to see what happens by accident when clicking around.
Anyone have any ideas? Realistically my solution is a 100% accurate FTP download, but I don't know how I can be assured that's going to happen without some way to check it anyway. There are only a couple that do multi-part downloads to begin with, although I've had a corrupted file even with a single-part download once too (which takes a lot longer obviously). Not sure if that is a different problem or the same, but for now I'm assuming the same. The official trial version of the one I'm using (CuteFTP) causes the exact same issues, so I'm not enthusiastic about registering it legitimately and having it do the same thing. Therefore, I'm hoping to find some kind of integrity checker to ensure I have good copies. I've actually started seeking out ones in rar files because I can just re-download a particular rar, and if it unzips completely I know it is good. But they aren't all available that way.
Thanks in advance for any suggestions.