- AAC (M4A, M4B, M4P, up to 320 Kbps)
- Apple Lossless (a high-quality compressed format)
- MP3 (up to 320 Kbps)
- MP3 Variable Bit Rate (VBR)
- AA (audible.com spoken word, formats 2, 3, and 4)
The following video file formats are supported by iPod touch:
- H.264 (Baseline Profile Level 3.0)
- MPEG-4 (Simple Profile)
iPod touch does not 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 iPod touch, you may be able to convert it to a format iPod touch supports. See iTunes Help for more information.