I downloaded Slackware 13.1 x86 ISO discs 1, 2 and 3 using MLDonkey (for disc 1) and BitTorrent from slackware-13.0/extra/bittorrent/ (for discs 2 and 3). MLDonkey worked quietly but downloaded disc 1 for over nine hours. BitTorrent displayed the error quoted below and downloaded each disc for less than 50 minutes.
Code:
"slackware-13.1-iso" : rejected by tracker - Your client's "key" paramater and the key we have for you in our database do not match.
I checked MD5 checksums for all discs and all are valid so that error isn’t critical.
After downloading the files I put them in the common slackware-13.1-iso directory, which is seen for BitTorrent, I run the program, I opened three torrents, and I started downloading for all of them. In result BitTorrent seeds them.
The same method allows to download a few torrents simultaneously using BitTorrent. It’s enough to open them consecutively and to start downloading for all of them.
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In BitTorrent Settings tab Download I switched option Stop another running torrent to make room to Don't stop other running torrents.