can any any one help me convert mp3 to at3?

Question

i did these steps
1. Install codec first
2. Install Goldwave program
3. Open the program and browse to any music file you have
4. Open a music file track any format .wma .mp3 etc
5. it will generate a wave pattern much like the nero wav editor
6. Click save as
7.

A. Choose a Filename that you prefer
B. under the save as type - drop down and choose Wav (should be the first choice)
C: under Attributes go to the bottom of the list and choose
one of the following (the top one)

- ATRAC3 66kbps STEREO
-ATRAC3 105kbps STEREO
-ATRAC3 132kbps STEREO

Then click save
8. It will generate a .wav file that will not play under windows media player but this program will play it
9. Rename it to .at3 and you have a psp compatible .at3 file

but it dosnt recognise it
can any one help please its to make a custom eboot

also its not a boot sound

Answer 1

Dude that's so far over my head!!!! haven't got a single clue, sorry :(