I have an external USB drive with a TimeMachine backup from another Mac which I don't have anymore. For some reason I can't read the drive. I know this is definitely a permissions problem. Here's the current info: 1- The drive mounts fine and I see it in Finder. The problem is when I click on it to see its contents I get the error message: "The folder VERBATIM can't be opened because you don't have permissions to see its contents". 2- "Get Info" on this volume shows the drive icon with a lock on the lower left corner. 3- Access shows as: "You have custom access" 4- Permissions for all (myself,staff and everyone) are set to custom for some reason. 5- "Ignore Ownership on this volume" is checked. 6- If I try to change the permissions for myself from custom to read/write, it reverts back to custom. Odd. I'm attaching some screenshots. Any ideas will be much appreciated. I'm in the middle of an urgency here. Thanks in advance.