For example:
[download] Resuming download at byte 1868140
[download] Destination: Entry #1-Bn59FJ4HrmU.flv
[download] 100% of 3.27MiB in 4s
This format is meant to somewhat mirror the behavior of wget(1) when reporting finished downloads:
100%[==================>] 54,836,682 788KB/s in 74s
2013-08-04 12:32:05 (728 KB/s) - 'google-chrome-stable_current_x86_64.rpm' saved [54836682/54836682]
Now is using the same length as the flash player used for age protected videos, but the algorithm is different, so now for age protected videos it first tries to use the old algo.