I’m trying to reduce the size of my video collection because I’m running out of storage.
My strategy is to look for smaller sized files to replace very large ones. When that fails, I am using handbrake to rencode. Its working, but very slowly due to my ancient computer. Redownloading is the much faster method.
Some titles, which were originally released as non-english, have existing small files, but the English audio is only available less commonly as a huge file.
Is it possible to redownload the non-english video and map the English audio onto it? It might be too much fooling around to get syncing correct.
Extra question, does anybody know how to set up sonarr/radarr to try to reduce filesize automatically? Ive been doing all the downloading by hand.


You might want to look into Tdarr. Configure it once and let your old computer transcode away automatically.
For audio stream replacement - if you get the exact same video (same intro length, same scene lengths, same total length, etc.), you can easily replace the audio streams and it should work out.
ffmpegis your friend to do it lossless.Second tdarr for doing this to a large library but if it’s just a file or three mkvtoolnix and mkvextract is easier, tdarr can be kind of a nightmare to configure and documentation isn’t amazing
lol you weren’t kidding… the docs about how to set it up as a service in linux is a 30+ comment issue spanning 5 years.
Honestly that’s not even the worst bit. Like docker images exist that can get it running in no time. But then if you just want to say, scan your library and remove all languages for subtitles and audio that aren’t your native language? It’s definitely doable but a pain to setup. Even more so if you speak a second language or are like an anime person that hates dubs