Reposting this because I never really got any answer before and I see that Mr. Robertson is active on the list now and (based on various UseNet posts from a few years ago) I think he knows a good bit about the ML4100. --------------------------------------------------- I have an ML4100 that has and is serving me well. I have most of the various pods and ROMs for it and duplicates of many of them. Two things I'm missing (based on my reading of the documents) are an RE-016 ROM emulator (with RS-232 interface) and an AB-032 non-volatile memory. Anybody have either of these that they might be convinced part with for trade or cash? Non-working would be fine. I enjoy troubleshooting. Alternatively, any explanations of why they are not very useful or worth having at all would also be of interest. Thanks, Bill Sudbrink