I have created a DSP plugin that can decode HDCD encoded files. It is based on the HDCD decoder provided by the author of the foobar HDCD decoder (kode54).
When this plugin is enabled, and a HDCD encoded file (including HDCD encoded files that have been converted to a lossess format like FLAC or ALAC, WMA Lossless, but not TAK) will be decoded on-the-fly. The MusicBee status bar will show when a HDCD file is being decoded- if the file has peak-extensions enabled then that will show in the status message
1. The plugin itself should be placed in the MusicBee Plugins folderhttp://www.mediafire.com/?dm9cl2xewcc4g91
2. Unblock the plugin - right click on the dll file in windows explorer/ Unblock
3. enable the plugin, either from the Equaliser and DSP window, or Preferences/ Player/ Equaliser & DSP