docs: public boolean check() throws Exception {
          format = FORMAT_UNSUPPORTED;
          // create a temporary copy from input
          File fileCopy = File.createTempFile("modeshape-sequencer-audio", ".tmp");
          IoUtil.write(in, new BufferedOutputStream(new FileOutputStream(fileCopy)));
  
          if (mimeType.startsWith("audio/mpeg")) {
              format = FORMAT_MP3;
              audioFile = new MP3FileReader().read(fileCopy);
          } else if (mimeType.startsWith("audio/vorbis") || mimeType.startsWith("audio/x-vorbis") || mimeType.startsWith("audio/ogg")) {
              format = FORMAT_VORBIS;
              audioFile = new OggFileReader().read(fileCopy);
          } else if (mimeType.startsWith("audio/flac") || mimeType.startsWith("audio/x-flac")) {
              format = FORMAT_FLAC;
              audioFile = new FlacFileReader().read(fileCopy);
          } else if (mimeType.equals("audio/mp4") || mimeType.equals("video/mp4") || mimeType.equals("video/quicktime")) {
              format = FORMAT_MP4;
              audioFile = new Mp4FileReader().read(fileCopy);
          } else if (mimeType.equals("audio/x-ms-wma")) {
              format = FORMAT_WMA;
              audioFile = new AsfFileReader().read(fileCopy);
          } else if (mimeType.startsWith("audio/x-wav") || mimeType.startsWith("audio/wav")) {
              format = FORMAT_WAV;
              audioFile = new WavFileReader().read(fileCopy);
          }
  
          // try to delete the file immediately or on JVM exit
          boolean deleted = false;
          try {
              deleted = fileCopy.delete();
          } catch (SecurityException e) {
              // ignore
          }
          if (!deleted) {
              fileCopy.deleteOnExit();
          }
          return checkSupportedAudio();
      }