480p is meant to go with the TV batch, so it uses the TV version of the 480p OP/ED. 720p + 1080p go with BD and include the linked chapters. I don’t know if these are final or temporary… This OP2/ED2 is the final version and will be linked into the rest of the K-On!! BD episodes (that use this OP/ED) as well.

1080p: Moe

720p: Moe

480p: Kyun~

PS – You can delete that cache file. It’s just what I use to get screenshots and I forgot to delete it prior to making the torrent.