Need help cloning large repo.

We have a large repo(around 4GB) up on bitbucket using mercurial. When we try to clone it it gives an error
files: 2985/6183 chunks (48.28%)
transaction abort!
rollback completed
abort: stream ended unexpectedly (got 14630119 bytes, expected 15066920)

Till now we have tried quite a few times, and actually it gets stuck at the same place every time. These are these video files in with extension .ogv.

Any help is appreciated !!