Can't help you there Percy. They were orignally .mp4 files (I have a few on my HD), which I guess would either work in an iPod or be readily converted, but they have recently changed all the files to .gvp.
If you know how to get from divx to an ipod friendly format, the gvi converter software may be of use:
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But I think virtualdub, which is freeware, can convert google video to divx (.avi).
There are some really good discussions, and it also contains the moment Degrasse-Tyson gave Dawkins a verbal spanking.
ABE: right, scrub all the above blah.
If you go here, Percy...
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You can download each individual session file in Ipod friendly format via the 'download' link in each video (just click on each session link and change the download format to ipod/sonyPSP).
Edited by melatonin, : No reason given.