I have a question that I posted about Guelph and Wellington EMS recently but I might be able to help you.I'm using a PSR-500, loaded all my files from this site. It's definitely Guelph Fire as it shows GFS with the 1OPS17. Also they're talking about pumpers and address's in Guelph. "Gordon Street Command" etc. I'm no expert mind you, in fact I'm looking some help on files for just the OPP in the surrounding area of Acton, because they seem to be changing talk groups and area's every day. 1 day Canbridge will be active, the next day I hear nothing. So I loaded all this new stuff from the files here and this is what I'm getting now. I'm also missing Wellington county OPP, this is why I included Guelph in the mix. I used to get Wellington county OPP, not any more. But I'm open to all suggestions. Right now I'm using the "free" edtion of PSREdit500 to load files. I'm not sure if it's done 100% right, because I'm only hearing Caledon and Cambridge OPP today, along with the GFS and some Halton fire analog stuff. I've also down loaded truck 88, but I don't think it works with Windows 7, but I'm experimenting now.