Use DOS VERIFY to verify that data written to a local drive is not written to a bad sector and can be read without an error.
DOS VERIFY has the following command format:
DOS VERIFY [ON|OFF]
The DOS COPY and NCOPY commands do not automatically verify that data copied to a local drive can be read after the copy.
To assure verification of each copy operation after login, add the VERIFY ON and DOS VERIFY ON commands (for network and DOS copies respectively) to the login script.
Another option, since VERIFY ON can affect performance by slowing down write operations, is to use the /V option at the command line with each COPY or NCOPY operation.
The default in the login script is DOS VERIFY OFF.
These commands may not work with some software that is copy-protected.