How do I compress mp3 audio file to small size?

I’ve played around with compressing MP3 audio file before, and honestly, it’s a balancing act. If you push the compression too far, your music can sound pretty bad, especially on good speakers or headphones. So, I usually test a few files with different settings first. Also, always keep a backup of your original files—once they’re compressed, the quality is kinda lost forever. If you’re thinking about using Fra:ac to compress MP3 audio file in Windows computer—great choice, it’s pretty solid for that. But honestly, as someone who’s tinkered with audio files before, I gotta say there are a few downsides you should keep in mind:

1. MP3 compression isn’t like editing a Word doc—you can’t just undo it perfectly. Once you compress at a lower quality, you can’t get that original high-quality sound back. If you overwrite your original files and then realize you don’t like the sound, you’re stuck.
2. Batch converting a bunch of files can be handy, but it can also be a bit time-consuming, especially if you’re adjusting settings for each batch. Plus, if you’re not familiar with the settings, you might end up with subpar results.
3. Sometimes, if your software isn’t up-to-date or if there’s a hiccup during the process, files can get corrupted or fail to play properly. I’ve had times where an audio file just wouldn’t open after compression, which was annoying.