NEW SD CARD Storage Optimizer

File Explores, Storage Reports, Storage Widget, Jukebox, Bookmark manager, FTP Manager, Network statistics, Password Vault, and many types of file and folder actions.

SD CARD Storage Optimizer allows you to browse files in SD card, generate storage reports, clean up duplicates files and folders in the SD card, and optimize SD card storage by compressing large files and folders.

Other features include SD Card Widget, FTP Manager to upload/download files between remote machine and your Android device, Jukebox to play music in background, backup application packages, App specific network statistics, bookmark manager to quickly access important files, and Password Vault to manage passwords.

Supported actions include:
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- Compress/Uncompress
- Tar/Untar
- Encrypt/Decrypt
- Extract RAR files
- Install Android Application packages
- Multi file Copy/Paste
- Image Viewer
- Media player
- Change ringtone
- Mail
- Create new folder
- View file content in web browser

There are many file managers. Here are differentiating features in this app:

1) Extracting RAR files
2) Set any audio file as ring tone.
3) Works with Android 1.5 version as well.
4) Play music in background.
5) Multiple storage reports.

Application translated to English, French, Spanish, Italian, German, Japanese, Korean, Traditional Chinese, Simplified Chinese, Russian, Portuguese and Swedish.

Here are independent reviews:
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http://www.itnewsafrica.com/2011/05/top-10-system-tools-for-android/
http://www.shanzai.com/index.php/guides/android-apps/776-android-app-of-the-day-sd-card-storage-optimizer.html

Frequently Asked Questions:
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1) How to find duplicate files?

From “Storage Reports”, select “File list Sorted by Size” Report to get list of files sorted by size. Duplicate files usually appear next to each other.

2) Does not encrypt as stated.

Encryption creates NEW file with .enc extension. Unencrypted original file is left as it is. You have to delete original unencrypted file after encrypting the file.
Example: Original file name: abc.txt, after encryption abc.txt.enc is created. After this you will see both abc.txt and abc.txt.enc files.
You have to delete abc.txt if you don't not to delete unencrypted file. Un-encrypting abc.txt.enc file recreates abc.txt.
Note: You must remember the encrypted file password to decrypt the file.

3) After compressing a file/folder storage space size increased!
  
Compressing a file or folder creates compress archive file with .zip extension. You have to delete the folder or file manually after compression if you want to free up space.
Example : Compressing folder name foo creates foo.zip archive file. You have to manually delete foo folder to free up space. You can uncompress foo.zip to recreate foo folder.