Apple iPhone OS 3.1 - Manual (Page 201)

The following video file formats are supported by iPhone:
H.264 (Baseline Profile Level 3.0) •
MPEG-4 (Simple Profile) •
A song encoded using Apple Lossless format has full CD-quality sound, but takes up
only about half as much space as a song encoded using AIFF or WAV format. The same
song encoded in AAC or MP3 format takes up even less space. When you import music
from a CD using iTunes, it’s converted to AAC format by default.
Using iTunes for Windows, you can convert nonprotected WMA files to AAC or MP3
format. This can be useful if you have a library of music encoded in WMA format.
iPhone doesn’t support WMA, MPEG Layer 1, MPEG Layer 2 audio files, or audible.com
format 1.
If you have a song or video in your iTunes library that isn’t supported by iPhone,
you may be able to convert it to a format iPhone supports. See iTunes Help for more
information.
iTunes Stores
iTunes Store Isn’t Available
To use the iTunes Store, iPhone must be connected to the Internet. See “Connecting to
the Internet” on page 40. The iTunes Store isn’t available in all countries.
Can’t Purchase Content
To purchase content from the iTunes Store or App Store, you must have an iTunes
Store account. Open iTunes on your computer and choose Store > Create Account. You
can also set up an account on iPhone. See “Viewing Account Information” on page 166.
Note: The iTunes Store is available only in some countries.
Removing the SIM Card
If you need to send your iPhone in for service, or if you want to loan your iPhone to
someone and you still want to be able to make calls, you may be able to use the SIM
card inside iPhone with another phone.
201 Appendix A Troubleshooting