Storage: 80 GB
Song capacity: 20,000
Photo storage: 25,000
Video storage: 100 hours
Audio support: AAC (16 to 320 Kbps), protected AAC (from iTunes Store), MP3 (16 to 320 Kbps), MP3 VBR, audible (formats 2, 3 and 4), Apple lossless, AIFF and WAV
Frequency response: 20Hz to 20,000Hz
Photo support: JPEG, BMP, GIF, TIFF, PSD (Mac only), and PNG formats
Video support: H.264 video: up to 1.5 Mbps, 640 by 480 pixels, 30 fps, baseline low-complexity profile with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats; H.264 video: up to 768 Kbps, 320 by 240 pixels, 30 fps, baseline profile up to level 1.3 with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video: up to 2.5 Mbps, 640 by 480 pixels, 30 fps, simple profile with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats