Extra data being added by PHP

So I have some PHP-driven m3u playlists. For example:


These seems to work on most systems, however it is not recognized by an older version of WinAmp which I am trying to debug. I have checked what cdbaby.com is sending, because their playlists work, and it seems to be identical.

But when I used an HTTP viewer at:


It shows some ghost characters being sent before and after the actual content. I went to some other PHP pages and noticed the same thing. Right now this is my only lead as to why the M3U playlist isn’t working in this old version of WinAmp. Does anyone have any idea what is causing these extra characters?