What are the differences in many similar profile options, such as several ones for iPod and several ones for iPhone?
Actually, different profiles that we have offered represent different output qualities. For most of profiles, you can notice the different default settings on Video Size and Video Bit Rate. Generally, the higher values you set for those two items, the better qualities and the larger output file size you will get after the conversion. If you want to get the best quality and regardless of its file size, you’d better select the profile with the largest Video Size and Bit Rate.
