mod, you forgot to mention its AAC-LC audio and its up to
160kbs, 48000Hz
IPod H.264 only support H.264 Profile Level 1.3 or 3 (for
640x480)
Which means little or none of the more powerful compression
techniques will be used.
They also support Simple Profile of DivX, XviD and other MPEG-4
codecs.
From http://www.apple.com/ipod/specs.html
Video formats supported: H.264 video, up
to 1.5 Mbps, 640 by 480 pixels, 30 frames per sec., Low-Complexity
version of the H.264 Baseline 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 frames per sec.,
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 frames per
sec., Simple Profile with AAC-LC audio up to 160 Kbps, 48 kHz,
stereo audio in .m4v, .mp4, and .mov file formats