Sent from my SPH-L900 using xda app-developers app
I noticed this also. I thought it was due to my G2 being rooted with the volume boosting mod.
When you have your ringtone on vibrate the media volume seems to be only outputting 70 percent or so even if you have the slider to max volume. Once you move the ringtone off vibrate, the sound instantly jumps to 100 percent. Weird...