Requirements :
It should work on 4.0 +
It needs Root
Needs to have USB debugging enable

Description
We know our device scans media on every boot, and that makes device slow on booting, also while scanning is running Call recording mod can't save recording. Also it drains considerable amount of battery juice.
This application simply disable/kill media scanning process. Also you can enable it any time (mostly needs after updating media files to device)
Sometimes after enabling it still media scan doesn't starts, just plug in to USB and transfer a media file.

How to use :

- Open from App drawer
- It will media scanner scanner switch text and right to that there is icon. single press on icon will enable media scanner. To disable media scanner long press same icon. same information pop up if you tap on media scanner switch text.

Wait before you purchase :
This is just Donation application and same free version available on XDA, You can try first free application and only consider to buy, if it works fine on your device.
http://forum.xda-developers.com/showthread.php?t=2624200