You realize CAPTCHA trading sites are used almost exclusively for spamming, don't you?
I just realize that you didn't look at the website/software.This one is only used to download from filehosting services.
Big files are usually divided on many parts, so there are dedicated downloader ( as Jdownloader )
If you put all these links in the downloader, you will be able to download only 1 file at time from almost every filehosting services, and they will ask for a captcha for every new downloads.
How can you download something that has 20 or more parts? you will have to stay in front of the computer for hours.
Here it comes softwares like the one that I linked.