I'm going through the long process of making a program to read JT files. This involves reading each 450 page spec and comparing one to the next. The problem is that Siemens seems to remove old copies from their website.  This is the list of versions I know about: 7.0; 8.0; 8.1; 8.2; 9.0; 9.1; 9.2; 9.3; 9.4; 9.5; 10.0.I currently have a spec for 9.5.  Does anyone know where I can find a spec for each of the other JT file versions?