Can any any one help me convert mp3 to at3?

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

Can any any one help me convert mp3 to at3?
Dude that's so far over my head!!!! haven't got a single clue, sorry :(