Commodore 1581 - Page 125

62: FILE NOT FOUND
The requested file does not exist on the indicated drive. Check
your spelling and try again.
63: FILE EXISTS
A file with the same name as has been requested for a new file
already exists on the diskette. Duplicate file names are not al
lowed. Select another name.
64: FILE TYPE MISMATCH
The requested file access is not possible using files of the type
named. Reread the chapter covering that file type.
65: NO BLOCK
Occurs in conjunction with B-A. The sector you tried to allocate is
already allocated. The track and sector numbers returned are the
next higher track and sector available. If the track number re
turned is 0, all remaining sectors are full. If the diskette is not
full yet, try a lower track and sector.
66: ILLEGAL TRACK AND SECTOR
The DOS has attempted to access a track or sector which does
not exist. May indicate a faulty link pointer in a data block.
61: ILLEGAL SYSTEM TORS
This special error message indicates an illegal system track or
block.
70: NO CHANNEL (available)
The requested channel is not available or all channels are in use.
A maximum of three sequential files or one relative file plus one
sequential file may be opened at one time, plus the command
channel. Do not omit the drive number in a sequential OPEN
command, or only two sequential files can be used. Close all files
as soon as you no longer need them.
71: DIRECTORY ERROR
The BAM (Block Availability Map) on the diskette does not match
the copy in disk memory. To correct, Initialize the diskette.
72: DISK FULL
Either the diskette or its directory is full. DISK FULL is sent when
two blocks are still available, allowing the current file to be
closed. If you get this message and the directory shows any
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