Can't access my old files after switching ROM from AOKP to CM, even though they're still there
A few things that will do you good before you start resolving this issue.


This issue has been around since CM 9 and has been inherited by CM 10.
While ROM Manager (and not CWM) was the culprit some time ago, the issue has since been resolved by them.
The .nomedia file you are looking for should be inside /sdcard/Android/data. It may not be there but can't hurt to look for it.
Have a good file manager with root access installed and have it set up to search for hidden files. I recommend Root Explorer.


Okay, enough info. Let's get cracking. Follow this and let me know if it resolved your issue. Follow everything to the T. Do not leapfrog over steps or try to do anything else before you have gone through the entire process. All the best!