I am having problems with sounds when converting into mp-4 format and using on my 2nd generation itouch. The voice track is not in sync when I pay on Ipod. Any idea where I am going wrong? Settings are: 
Format MP-4 (Ipod Custom) 
Frame Rate 30 
Frequency 4800 hrtz 
Bitrate 256 kbps 
640X480
			
		