If you need the audio for personal, offline use, these are the safest and highest-quality routes.
Some users store their legally ripped audio files on Google Drive, Dropbox, or Plex. If a friend tells you they can "share" a link, treat it like any other download link—scan it with VirusTotal first. However, using your own cloud storage to access your own ripped audio across devices is perfectly legal and convenient.
A low-bitrate 64kbps mono MP3 would be tiny (approx 50MB), but it will sound like a tin can. The smallest acceptable size is 192kbps stereo MP3 (around 180MB).
A: Films use dynamic range (quiet whispers, loud explosions). If you downloaded a direct rip, it hasn’t been normalized. Use a tool like MP3Gain or VLC’s compressor effect to boost it.
A: A DTS-HD Master Audio 7.1 track is roughly 4-6 GB. A 24-bit FLAC stereo mix is about 1.5-2 GB. A standard 320kbps MP3 is approximately 350-400 MB.