If we change to 52 rem, we will loss 'player seek-remaining'.
before:
![2013-05-17 9 57 36](https://f.cloud.github.com/assets/1390779/516039/2b4b5a6a-be95-11e2-86d3-0fe37db9489b.png)
after
![2013-05-17 9 55 21](https://f.cloud.github.com/assets/1390779/516032/df55bbb4-be94-11e2-9826-e9c1f954b6fe.png)