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XMA is the audio container/codec format used on the Microsoft Xbox 360 console. It is thought to be based on WMA Pro.


  • Discussion on HCS Forum
  • "xmaencode.exe" from the Xbox 360 XDK provides encoding and (broken?) decoding.
  • ToWav.exe is a (closed source) independent decoder.
    • It is packed with UPX. 'mudlord' has unpacked it and annotated the Delphi calls: towav_unpacked.rar
    • It might have just been linked to xmaencoder.lib from an old XDK...
  • xma_parse exists to parse and repack the steam for files that ToWav breaks on.
  • xma_setup.txt is an annotated disassembly of the xma_setup routine (from xmaencode?).