Does the Error 6584 time machine is displayed when you are trying to perform the recovery from the time capsule ? The time capsule is the external drive that saves the copy of the files you had chosen for backup. However the corruption of the drive generates error and don't allow you to recover the files. The corruption of the time capsule happens when it has been disconnected from the Mac system abruptly, was being used with different Mac systems. The file system of the drive can get damaged which will show the Error 6584 time machine, you can fix the error by formatting the drive. You can use it for future but all the previous data will be lost. You can recover your files by using the Mac data recovery software, it can scan the Mac drive as well as the time capsule to retrieve the data. You will get the preview where you will be able to select the files to restore. The recovery process easy to handle which is complemented by the straight forward user interface. So download the software and when the Error 6584 time machine is fixed.