If you are interested in the Dune story in the .m4b format, you should look for the official audiobooks. These can be purchased or streamed legally from:
If you are looking for an m4b file, you are likely looking for the of the source material, not the TV episode itself. dune: prophecy s01e01 m4b
The Dune franchise has a massive library of audiobooks and full-cast audio dramas. These are legitimately distributed in .m4b format. If you are interested in the Dune story in the
," serves as an origin story for the Bene Gesserit (then known as the Sisterhood). Set 10,000 years before the birth of Paul Atreides, it explores the aftermath of the , the war between humans and "thinking machines". Episode 1 Summary: " The Hidden Hand " These are legitimately distributed in
While .m4b is strictly an audio container, some users convert TV episodes into audio-only drama files (removing the video track but keeping the dialogue and sound effects) to "listen" to episodes like audiobooks.