How to create a custom boot up sound for the PS3

With the recent released of homebrew app Mount Alejandro, forum member gliitch from PS3Hax has figured out a way to create a custom boot up sound for the PS3. To get started, you will need Comgenie's Awesome File Manager, XviD4PSP (for PC), and Mount Alejandro. Warning: modifying files inside of /dev_flash directory can transform your PS3 into a piece of brick--USE WITH CAUTION! Tutorial is below and a couple of demo videos.

By forum member gliitch from PS3Hax:

[PART ONE]

To get the R/W dev_flash to work, you'll need a hex enabled with Peek&Poke. Then fire up the app. You'll get an message saying "This program enables A Dev_Flash unit with WRITE ACCESS! It is your responsiblity! If you erase the firmware or make it brick its YOUR FAULT!" etc. Press O to enable the rewritable flash. it will go "....... Success" then it will quit, taking you back to the XMB.

[PART TWO]

Fire up Comgenie's Awesome File Manager Scroll down to "dev_alejandro/vsh/resource/ untill you see two files one named: coldboot_multi.ac3 and another called coldboot_stereo.ac3. These two files are what you will need to change, in order to get a custom bootup sound. Dont to anything yet...

[PART THREE]

Grab any mp3 you want, be it from a game or whatever it doesnt matter. Load up XivD4PSP.

You will need to trim it to around 8 seconds as it will get cut off. [like in the video] You'll see Set Start/Set End and apply trim.

Audio encoding AC3 640K

Once that is done, and you are happy with your bootup sound, rename it coldboot_multi.ac3 and then the same file as coldboot_stereo.ac3. Save it, by doing Ctrl+S.

Now, copy the files to a USB stick, you should still be in Comgenie's Manager.

Select 0000 (far right usb) and press select for the screen to go red. Then press O to copy the two files over, and replace them. Exit to the XMB.

Power off your PS3, with or without your JB, and listen to your new Boot Sound.

Source PS3Hax