Compressed Ogg Vorbis
You can compress or convert any kind of file (like MP3) to Ogg Vorbis and its royalty free!
Since it's compressed, Ogg Vorbis does lose a little quality but its very unlikely that you will notice. The only real
tradeoff for Ogg files is that the Codec is a little slower so it takes longer to play files, on the order of 50 milliseconds or
so. In general this is not noticable, but if you are looping audio with a TnnHOLDL.ogg file, you'll notice a small gap.
Ogg Vorbis is
about
1:5 to 1:10 compression over WAV files, so you can store 5-10x as long audio if you compress it
to Ogg, compared to the numbers above