iPod Sound quality of videos vs. songs

[emilyrose]

I'm wondering if the sound quality of a song on a video is as good as the sound quality for just a song.

I want to know because there is an album I'm interested in that doesn't have all the artist's hit songs I want but it does have some of them as videos. Would the video versions of the songs be as good as the song-only versions?

 

[Xeem]

All of the vidoes I've downloaded from iTunes are encoded in 128 bit AAC, the same as the songs. There is no noticeable difference to me.