I think someone need to check the current MHT definition file.
I test it on a couple of MHT files and TrID identify it as EML.
I create a new MHT definition file myself, but I don't have enough samples to be sure that it work perfectly.
The one by Dr.Ryo(TM) used 79 sample files.
While mine use only 23 files, although after adding my definition, TrID identify my files correctly.
If anyone has a lot of MHT files, please check it for me.
Thanks