MusicXCST is a Fabric mod that adds writable custom music discs to Minecraft.

Use the CD Writer block to turn local audio files into playable Blueprint CDs. Give each disc a custom name, color, and pixel-art disc design, then play it in a jukebox. MusicXCST works for singleplayer worlds, LAN worlds, multiplayer servers, and modpacks.

Features

Writable Blueprint CDs
CD Writer block and GUI
Local audio upload and conversion workflow
Custom disc names, colors, and disc designs
Working advanced disc texture editor for custom Blueprint CD artwork
Jukebox playback through MusicXCST's custom audio engine
Server-side audio storage and ownership metadata
Client audio cache with checksum validation
Configurable file size, duration, storage quota, and per-player limits
Admin commands for music library management
FFmpeg setup options for audio conversion

Supported input formats include mp3, mp4, wav, ogg, flac, m4a, aac, webm, and avi. FFmpeg may be required for converting non-OGG files. If FFmpeg is missing, MusicXCST can guide the player through setup or allow OGG-only usage.

MusicXCST is useful for players who want personal music discs, server owners who want controlled custom audio, modpack creators, and developers building around custom music workflows.

Requirements

Minecraft 26.1.2
Fabric Loader 0.19.2 or newer
Fabric API
GeckoLib 5.5.1 or newer

The mod should be installed on both client and server for multiplayer use.

Audio Rights

MusicXCST does not include copyrighted music. Users and server owners are responsible for making sure they have the rights to any audio they upload, distribute, or play.