mathdon wrote:I have tried to load your 2018 file into RemoteMaster v2.07 build 2, which was the current version in 2018 and it fails with that too.  I cannot trace how your file was created, so do not know where the error originates
Thank you for taking the time to investigate this.
I have on my Windows system various RMIR and RMDU files. Most were created by me, and a few were downloaded from Hifi-Remote. I have just scanned all of them looking for the string 
Function.-1. I found this string in four device files, for two remote controls. The devices are:
- Sony TV
- Sony Scala 2 audio system
- Pioneer DVD
- Microsoft MCE (yes, really!)
The Microsoft MCE file is interesting because the file date is March 2023.
The remotes are more interesting, because they are the unloved Xsight Lite and Xsight Plus. I wondered whether there was something wrong with the download from these devices, so I created a "Digital Audio" device for each, using the code 1272 on the remote itself (i.e. not connected to the PC).  Code 1272 is Microsoft MCE. I then downloaded from each remote and saved the Digital Audio device to an RMDU file using RMIR 3.2.7. Neither RMDU file has the -1 entry.
So I think that it will remain a mystery as to how these files acquired the -1 entry. Thank you once again for investigating this.
-- from CyberSimian in the UK