Glitch in exporting with Batch Process to Mp3

Yes you could try reducing the number of processes. If you reduce it to one, and the same thing happens, then we'd have to look somewhere else! But if it works better, then this may indicate some sort of an access issue with the temp directory.

Hi Steve thanks for replying,
I've checked both and as I remember I never change them so they are still in the default setting.

If I delete the files in the temp folder will it help? 
Or do I need to move the temp folder to another location? Maybe to other directory in the same disk since I don't have other disk for this.

Should I lower the Maximum number of concurrent file processes' to less then 3?

Usually when these things happen, the root can be traced back to Audition's temp file setup. There are a few things to note; firstly that ideally, the temp file location that you use shouldn't be shared with any other temp function (I have mine set up on a fast SSD of its own). You can set the location of this in Edit>Preferences>Media and Disk Cache. Don't worry about the secondary temp - we've yet to find out what it does! The other thing you might need to change is in the Data tab. Where it says 'Maximum number of concurrent file processes', keep that number low. I have it set to 3 and it works fine. The larger that number, the greater the chances of temp file cross-corruption are.