I have searched the forums for this problem and it's apparent that it's persistant.
I have updated to SVN build r15465-071105, but for two weeks before this, everytime I ran disktidy it just gave me "plug-in return error". With this recent build it gave me the same error message, but after five tries it finally worked again.
Can anyone else verify if they have had this problem?
I'm using an iriver H320. Any ideas would be appreciated.