Improve time remaining estimation

[Wernight]

I'm guessing your calculating the time remaining via something like:

remaining = MB-left * MB/sec

It would be much more accurate via:

remaining = files-left * constant + MB-left * MB/sec

The constant can be initialized to a standard value and evaluated as time goes by.

Reason: 1000 5k files takes much MUCH longer than a single 5000 K file.

[Aaron]

Thanks for the suggestion. Improving our speed reporting is on our wishlist and I'll add your notes to it.