Custom logon sound won't play?

So, I just figured out how to make a custom logon sound. I thought it be cool to have this: PS1 startup HD - YouTube (Original PS1 startup music, hehe.) I downloaded it as a mp3 then used an online converter to change it to a .wav file, I set the sound as the logon sound and tested it, but it didn't play. I disregarded that, and then logged out and logged back on to see if it would play, but it still didn't. Any way I can fix this?

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