Yeah, I was looking through my friend's SGH-D807, and when I played one of his mp3's, it played crazily loud, the bass was amazing. I couldn't believe it. How can I do that too ?
Use google and search for "mp3gain". It is a free small windows program that will change the volume of any mp3 song file. For example use 94 decibels as the target volume. Load the mp3 ringtone file (it must be less than 600K in size to work as a ringtone on the Samsung Sync) and run "track gain". Save the file and load it on to your phone.