I wonder whether it might be worth you using the program I came across the other day when looking to get video files onto the
ipod touch.The free version of this program only covers 3 to 3 and a half minute videos when converting but as I was only getting music vids it catered for our needs.
You could use it to download the
youtube vids and convert to whatever file type you want .... loads supported!
My son converts some of the files to mp3 only as he doesn't want the video but just wanted the mp3 sound track and it does this brilliantly.
http://www.any-video-converter.com/products/for_video/ EDIT;
Sorry ... I thought the video window was "expandable" ..... It's fairly small although very clear.
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ANNE R