Hi,
In Corona Cards documentation write audio support only .wav and .ogg files, but .ogg dont working in my app, .wav support/work and all fine.
I use Corona Cards v 2015.2731, you can try sample \Corona Labs\Corona SDK\Sample Code\Media\AudioPlayer and .ogg dont working in this case. I try different bitrate for ogg and all unsecsessfull.
Please help, what bitrate for ogg are you using and tell me ogg files work on your app?