Problem with Itunes and transferring some songs to Ipod.

I recently encountered a problem in itunes when trying to transfer over 3 certain albums. Itunes can play these files just fine, but when I try to drag them over to my ipod it says that the song cannot be played on the ipod. The part that confuses me is that, I see no noticeable difference between this song and any of my others that copied over just fine. Here a screenshot(in spoiler).

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I opened up some details of both a song that wont transfer and a song that will transfer. There are noticable differences but both are .mp3 and should be transferrable.

I got more detailed specs on each song but I cant find the problem.(pictures blow. )

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