SD-Card recover - Easy,Peasy.
If you deleted your files out of your SD-card, It's easy to recover it.
All you need is -
- SD-Card reader (USB Mass Storage)
- a computer
If you don't have a SD-card reader, turn on the MSC protocol on your device (Mass storage).
Now, download the RECUVA. Don't forget to run this program as an administrator. (Right click - run as n admin). You don't need root for this.
This is a guide that I won't post here beacuse it's too long and difficult. However, you can get it HERE.
[ROOT] Simple recovery
Root makes it simple. This app will automaticly find the deleted files and recover them. It can recover over 1000 types of files - Music, .APK files, photos..just everything.