Commodore PC 10 - Page 408

1270 MS-DOS User's Reference
Usually, you will want to recover by typing responses in this
order:
R
(to try again)
A
(to terminate a program and try a new disk)
One other error message might be related to faulty disk reading
[
[
or writing: L
File Allocation Table bad for drive x
This message means that the copy in memory of one of the alloca- C
tion tables points to nonexistent blocks_ Possibly the disk was
incorrectly formatted
or not formatted before use. If this error
persists after you format it, the disk is unusable. C
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