I’m trying to download some mp4 files via qbittorrent but most of them don’t play. I have no reason to assume that the source is broken, is there perhaps something I am doing wrong or some way to fix it? I’m getting the “moov atom not found” error even though the file is at 100%. The whole torrent isn’t at 100% yet, but I enabled sequential downloading. It’s really big and I don’t want to download it all if it won’t work.
You should be able to play a video that’s at 100% even if the torrent isn’t complete.
It could be a codec issue? If you’re using windows there’s a tool called MediaInfo you can install that’ll analyze a video file and tell you if it’s corrupt and what codecs it uses. You might just need to install a codec pack like K-Lite if your system doesn’t already have the codec you need. Or, like an other commenter said, try opening it in VLC which has killer codec support built in.