Opening *zip files from Todopera

[BerlinExpat]

Has anyone tried opening *zip files from Todopera?
I've downloaded the first act of Tchaikovsky's Joan of Arc and none of the unzipping programms I've tried function. 
Is there anything special about these file I' missing?

[fr8nks]

Has anyone tried opening *zip files from Todopera?
I've downloaded the first act of Tchaikovsky's Joan of Arc and none of the unzipping programms I've tried function. 
Is there anything special about these file I' missing?

Here is how to download:

1. you need 7zip installed on your computer. It's free and takes about 30 seconds to install. Get it here:

                                                             http://www.7-zip.org/download.html

There are 9 choices for download--use the top one. Winzip won't work if you have it and this will do everything Winzip does but better.

2. Download both halves or thirds of the concert even if you only want the first work listed. Most files end in 001 and then 002 and maybe 003
    You will get a funny looking icon when you download each file. It takes several minutes to download each half but
    you can minimize the download and continue to use your computer for other things.

3. After you have all of the files on your computer, right click on the first one downloaded and you will see a menu appear.
    Place your mouse over 7zip in this menu and a new menu opens. The 4th option listed reads "Extract here". Click  on this and BOTH halves of the file will open or all three files if that is the case.

Frank