Htc Aria - Change notification sound to SDCard?

[langthang1211]

hi everybody,
I want to change the notification sound by using mp3 file in the SDCard, but it did not work.

Here is some ways I tried (not work) :
- Create folder at SD Card : sdcard/media/audio/notifications
- or : sdcard/system/media/audio/notifications
- Rebooted

it works at HTC Hero but I cannot apply it in my HTC Aria.

Any advices?

Thanks.