Can someone please clarify a Samsung SGH X-495 Ringtone Q for me?

Well I have ringtones and Mega Ringtones in this phone. There are only 10 ringtones and 10 Megatones..is this right?? The part that confuses me is that the ringtones names are in alphebetical order and go up to the letter "D" Don't phones usually have ore ringtones that continue through the alphabet? Do I have missing ringtones? Also the megatones don't have any names, they are only numbered 1-10, weird..