If you have three below questions, then your search ends right here, as iPhone 4 Music Transfer is your final answer.

How to copy or transfer music to iPhone 4?

How to use your iPhone 4 to copy your music to a new computer? 

How to copy music or any other content from your iPhone 4 to Computer?

iPhone 4 Music Transfer is specially designed for iPhone 4/iPod/iPad users to transfer iPhone 4/iPod/iPad music and any other media files back to iTunes to rebuild iTunes library, backup iPhone 4/iPod/iPad music on PC local, or transfer music, video, audio books, photos to iPhone 4/iPod/iPad without unwanted iTunes synchronization.

Besides, iPhone 4 Transfer can also help you convert all popular videos, such as AVI, WMV, FLV, MOV, to iPod/iPhone/iPad supported format with one click. Get iPhone 4 Transfer now and freely manage the content information of iPod/iPhone/iPad.

With iPhone 4 Music Transfer, you can:

1. -Transfer music, videos and photos from PC to iPhone 4/iPod/iPad without iTunes.
2. -Backup music, videos and photos from iPhone 4/iPod/iPad to PC.
3. -Transfer music, videos and photos from iPhone 4/iPod/iPad to iTunes.
4. -Convert video & audio for iPhone 4/iPod/iPad.
5. -Easily manage iPhone 4/iPod/iPad  files without iTunes.