OK, to explain: As with virtually all classic computer systems, those systems used a proprietary file system that is not compatible with a PC file system. For instance, the TI file system used some attributes like file structure which do not map to the PC file system.
Now, when you are running an emulation, you encounter the problem how to handle your old files. There are two ways:
- Wrap a container around the TI file. This is the TIFILES format. It contains all meta-information so that the emulator may treat the file correctly; Tursi uses this approach for the Classic99 emulator. See https://www.ninerped.../TIFILES_format . The TIFILES format was originally invented for transmitting files from one TI system to another via modem.
- Many other emulators, including MAME, use a dump of the whole diskette used with the classic system. The DSK format is just the contents of all sectors of the disk. This is pretty similar to what you may know from VMWare or other virtualizations. In that sense, the diskette image, as it is called, contains all the files, and the emulation just processes the diskette image like a real disk.
There are pros and cons for each of these approaches.
Edited by mizapf, Thu Mar 28, 2019 11:42 AM.