zipping perfmon logs not working

Oct 16, 2014 at 1:30 PM

I am using Dotnetzip and copying multiple files like event logs, text logs and perfmon logs to the zip. I see occasionally perfmon log is either being skipped or if included in zip, it gives crc error .
The behaviour is very random and its happening with only .blg files(perfmon logs).

I have used

before save().

Any ideas?