iTunes, manage your video and audio files in iTunes
It would have been great if there was only one music format to meet all the needs in terms of sound quality and size, but this is a matter of feature. Different file formats have their ups and downs. Generally, if you choose a format in favor of size you trade the sound quality of the music and vice-versa!
iTunes gives you the possibility to rip songs in the file format you want them to be saved in. In iTunes you can choose two of the most common file types: MP3 and AAC. Besides the two mentioned iTunes also offers Apple Lossless Encoding, AIFF, and WAV music formats. The last two are used for CD burning and feature high-quality, uncompressed files. This means they have greater size than other file types.
iTunes, a shortened name for MPEG-4 Part 14, is a multimedia container format standard specified as a part of MPEG-4. It is most commonly used to store digital video and digital audio streams, as well as other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet. The official filename extension for MPEG-4 Part 14 files is iTunes, thus the container format is often referred to simply as iTunes.
iTunes keeps track of songs by creating a virtual library, allowing users to access and edit a song’s attributes. These attributes, known as metadata, are stored in two separate library files. The first is a binary file called iTunes Library and it uses a proprietary file format (“ITL”).iTunes is an application that allows the user to purchase and manage audio and video on a personal computer, acting as a front end for Apple’s QuickTime media player.
SinceiTunes is getting more and more popular, despite containing both audio and video, has a very small file size and can be sent over the internet at great speed. The file can be watched in perfect quality immediately upon receiving. it is quite common to people who use the latest iTunes, iPhone and PSP. A iTunes file uses separate compression schemes for audio and video. Video is compressed using the MPEG-4 encoding algorithm, while the audio is compressed using the AAC compression format. But since iTunes is a container format, it can also contain an MPEG-2 AAC or an iTunes bit stream. These different formats are given in the header of an iTunes file, specifying the exact object types in the container.
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