While using the batch processing of Irfanview you can encounter this error: "disk is full". The error happens when you've set to overwrite thre previous files (advanced conversion settings) and they are *locked*. Check if the file can be written by your Windows User, check that the file is not read only, check if the file is not locked by another process. ______________________Remove read only____________________ Right-click on the file. Click on Properties. Click on General tab, clear the Read-only check box, and then click OK (confirm also to apply to all the subfolders. ___________________________________