Can't open folder on external drive, but can see it

[Pedro Guerne]

Hello,

I copied a folder to my external drive a few weeks ago and today when i tried do access it i can see the folder on finder, but i can't open it or even see it's contents on the right side of finder.

The strange thing is that i'm duplicating the folder and in there i can see the contents. Haven't tried to open any file but i'm presuming that i can, because now i can see them on finder.

Anyone nows why this is happening? The external disk is a Verbatim, 320 Gb and it's formated in Mac Os Extended (Journaled).

I want to know so i can prevent this from happening and because i'm thinking of using it as a backup.

Thanks!

 

[JohnDS]

Run Verify disk on the external disk using Disk Utility to see if the disk directory needs repairing.

 

[Fishrrman]

When you look at the folder (on the external drive), does it have a small red circle imposed over it with a "no entry" icon?
(thinking permissions issue here)