mp4 uses AAC as audio compression that is pretty much superior in all ways compared to mp3 as it takes up less space, supports higher sampling rate and multiple channels instead of just two 44.1khz 16bit tracks, and if there is no videodata, it doesn't use more space. But the main reason that Apple uses mp4 is Digital Rights Management aka copyprotection. mp4 has it, mp3 doesn't.
No thats just for converting Audio not Video
Both Amazon and iTunes supply music at 256 kbps but Amazon supplies MP3 files whereas iTunes supplies AAC (the audio part of MP4) files which are usually slightly smaller file sizes.
You can get the audio books on iTunes or stepheniemeyerbooks.com
MPEG-4 audio files can be imported to iTunes 9. They will usually have the extension .m4a or .mp4. The AAC files that you can purchase from the iTunes store are MPEG-4 audio files.
The default audio formats that can be imported into iTunes are AAC, AIFF, Apple Lossless, MP3, or WAV.
Audible is the source of audio books in the iTunes store. You automatically have an Audible Listener account through iTunes when you sign up, even if you don't listen to audio books.
No. iTunes is not supported by the DSi. It does, however, support the audio format of music downloaded from iTunes.
Go to video2mp3.com and get the audio off of youtube, and then put it in your itunes.
To downgrade an AAC (MP4) to an MP3 file open iTunes Preferences and select the Import Settings in the General section. Change the Import Using: option to MP3 and set the Settings to the desired quality. In the iTunes library right click on the AAC file and select Create MP3 version from the menu.
Copy CD Music to localhost and convert them to iTunes compatible audio.
yes
iTunes