If you do not find what you are looking for on this page you can look in the LOR_WIKI and you can check out the LOR_SUPPORT_CENTER.
Latest firmware requires updated Hardware Utility below (updated 9/30/07)
DC-MP3 updated 06/27/2008 - Units shipped between 06/5/2008 and 06/26/2008 - The Schedule play time did not work correctly.
LOR1602MP3
RF-V4