I'm sorry, but that sucks so much!
This means Sigur Rós will never be able to upload Untitled 8, which is 13 minutes long. Also my band, if we ever decide to upload songs, can't upload a lot of our songs, since we also have some that are longer than 10 minutes.
Damn, don't you guys at HMX never think about Post-Rock at all? At least give it a 15 min limit, that should be okay.