iPod 2G not allowing sync of supported video I have some videos that I would like to copy onto an old iPod Touch 2Gen for my daughter, so that she doesn't have to see the horror of YouTube.  The specs for the device (as taken from here) show that the following are supported video types:


  H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second, Low-Complexity version of the H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; H.264 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Baseline Profile up to Level 3.0 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats


Quicktime shows the following when playing the video:


And iTunes has the following in Get Info:


But when I try to copy the file via iTunes, it says the file is not supported:


How can I found out exactly what is is complaining about, so I can fix it?
I have seen people mention that when they had an issue like this they changed the resolution to 640 by 480 pixels.