- 10 - 3.5. Error messages of the DOS in the case of use of the DOS (also the file load and memory function of the Freezers for frozen programs call the DOS on) can occur certain errors. The error messages take place in the clear text, but in English language (over also the markets in neighbouring Europe and in the USA to keep open is necessary unfortunately also with German products), who does not know English finds here the meanings: F FILE EMERGENCY FOUND - FILE* MISMATCH - BATH DISK I/0 the file not found (internal) the file number is incorrect, those file structure is probably damaged. If possible the other files save and to disk format the command cannot due to a bus error or a diskette error or by writing protection not be implemented. NO DRIVE - no floppy station DISK FULL - the disk is accessible fully FILE LOCKED - of the file is locked DIRECTORY FULL - The directory is full (max. 64 file/disk)