Today i'm sharing with you all about Galaxy S (Without mention i9000) for your Galaxy W
See attachment photos for your confirmation and download zip file and also I attach a Sound file ( i personally like this).
Download & Install Root Explorer (Here it is)
Download attached bootanimation.zip File and boot_audio.mp3 file and paste into your SD Card.
Extract your boot_audio.zip file and only copy boot_audio.mp3 file (zip file not required)
Now open Root Explorer > Mount Root
Copy your original boot animation file to your backup folder (follow >> system/media/bootanimation.zip)
Now copy your downloaded bootanimation.zip file and paste into system/media folder and Set permission
Copy your download mp3 file named boot_audio.mp3 and paste into system/media folder and set permission
Note: Boot Sound file only work in Indroid RemICS, Digital AOKP, MIUI & Milestone... Not working in CM B1/2
Reboot and Enjoy.