>>Hmmm...I decided to run a test on it...and it didn't report any errors.
>
>This process is done 2000 times per hour and I have this error 2 to 4 times per day. So, to be more exact, it is something like 49996 out of 50000 which will be ok.

Two points I thought I'd bring up. Differences in speed could have an impact here. What is occuring in your code immediately prior to issuing the ERASE command?

Also, if the cause of the file access problem cannot be rooted out, you could always trap for the error, and issue the command a second time. You have probably thought of this already. :)

Mark