Important: the WFDB_tools wrappers have been developed and tested with MATLAB R13. It is highly unlikely that they can be made to work with an older version of MATLAB. Initial development and testing was under Red Hat Linux 8.0, using WFDB library version 10.3.2; the wrappers have also been tested under Red Hat Linux 9.0 and WFDB library version 10.3.11. More recently, they have also been tested under MS-Windows XP, also with WFDB library version 10.3.11. It may be possible to recompile these wrappers and to use them with MATLAB R13 on other platforms such as Mac OS/X or Solaris, but doing so is currently unsupported.