why 'overwrite'

[avantuser1114]

when moving folders that contains read only or system files(e.g. thumbs.db, desktop.ini) the pop up window offers an option to 'overwrite'..the way i understand it is it says 'continue'(continue move operation)..or am I misunderstanding something?other options are 'skip', 'skip all', etc..so i thought 'overwrite' means 'continue'..though i'm not sure

[Mathias (Author)]

Yes that an issue with the error handling. Happens because the source file can not be deleted because of Readonly attribute. When moving a file that is not on the same partition a Copy and Delete is done.
Pressing 'overwrite' will delete source file. ( the file has already been copied. )