Torrent7zip

What is
Different computers, when compressing exactly the same files to a 7z archive, may create archives that are slightly different.

Torrent7zip is special: it creates exactly the same 7z in any computer when the original files are the same.

Many torrents in Pleasuredome were created with archives that were torrent7zipped.

That's why you have to torrent7zip your 7z archives to join a torrent at a high percentage of completion.

In Pleasuredome, the abbreviation "T7Z" indicates that the torrent is torrent7zipped.

''' Since January 2017, Torrent7zip will no longer be used on Pleasuredome because it takes too long (specially for merged sets). '''

How to use
Torrent7zip is distributed as a binary, so you don't install it, you simply unzip it to a folder.

Torrent7zip recompresses all 7z archives of the folder you specify and its subfolders.

If ZIP archives are found, it will ask if you want to convert them to torrent7zipped 7z archives. Press 'y' for Yes, 'n' for No, 'a' to convert All or 'q' to Quit. Press Enter after your letter of choice.

If you specify a 7z archive, only the specified 7z archive will be torrent7zipped.

If you specify a ZIP, torrent7zip will convert it to a torrent7zipped 7z archive.

Dropping the folder to the torrent7zip binary is the easiest way of using it.

Another way is using the command processor. Examples:

If there's any error on the torrent7zipping process, a file with the error log will be created on the same folder where the torrent7zip binary is.

Known problem
Recent 7-Zip versions (that clrmamepro relies on) don't work properly with archives that were torrent7zipped.

It's recommended to use 7-Zip version 9.22 beta (which can be downloaded here) or 9.28 alpha.

You can install 7-Zip of one of the versions above and copy  from the installation folder to the root folder of clrmamepro.

Additional information
If you attempt to torrent7zip a 7z archive that wasn't modified since the last time it was torrent7zipped, Torrent7zip will skip the torrent7zipping process for that 7z archive, which means a lot of time is saved.