Thread: Producing an img file from aa City Navigator file set

May I come back to my earlier question, which I must admit I had formulated rather unhandily.

So, I have this directory (not a file) City_Navigator_Europe_NTU_2023_20.gmap.

Inside, there are 2 directories (CNEuroNTU_2023_20_mdr and Product1) and 4 files (CNEuroNTU_2023_20.mdx, CNEuroNTU_2023_20_trf.trf, I0002575.TYP, Info.xml and Info_v2.xml).
Inside the first folder there are 2 files namely CNEURONT.MDR and CNEURONT.SRT.
Inside the second folder, there are 718 folders numbered from 00841977 to 00842005, each containing 1 .GMP file, and one more folder called CNEuroNTU_2023_20 within which are 6 files, all called CNEURONT (extensions LBL, NET, NOD, RGN, SRT and TRE).

I know that my patched 64s can handle an IMG file, but how do I get from this weird structure to that image file…? I thought there was a procedure somewhere on this forum but I just don’t manage to find it.

Thx for anyone putting me on the right track…!