What audio formats does iPod work with?
iPOD Formats: AAC, audio format, (8 to 32- Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 – 320 Kbps), MP3 VBR, Audible (formats 2,,4, Audible Enhanced Audio, AAX and AAX+), Apple Lossless, AIFF, and WAV. Best information for iPOD formats can be found at ipodclassics/specs on the apple website.