LiteOn LVW-1101HC1

Does anyone know where I can find a firmware upgrade for this DVD Recorder? LiteOn has updates for the models: 1101 and 1101HC but not for 1101HC1. I downloaded the 1101HC version. Will this apply to my model? Does anyone know the differences between the models? You sure can’t get help from LiteOn.:confused: Anyone’s help would be very much appreciated. Thank you.