Oracle Database Discussions

I downloaded Oracle Database 11g Release 2 (11.2.0.1.0) for Microsoft Windows (x64) from here:

http://www.oracle.com/technetwork/database/enterprise-edition/downloads/112010-win64soft-094461.html

Here are the instructions right off of the website:

1. All files are in the .zip format. There is an unzip utility here if you need one.
2. Download and unzip both files to the same directory...

When I extract the files both have the same basic structure:

c:\shared\win64_11gR2_1\
c:\shared\win64_11gR2_2\

The two folders contain a database folder with a stage folder inside:

c:\shared\win64_11gR2_1\database\stage\components - other folders DO exist in this stage folder
c:\shared\win64_11gR2_2\database\stage\components - other folders DO NOT exist in this stage folder

If I try to extract the files to the same directory (as indicated in step 2 above), the two stage\components folders cannot exist in the same folder at the same time...

c:\shared\win64_11gR2_extracted\database\stage
c:\shared\win64_11gR2_extracted\database\stage

I am not sure if the second file of the download is even needed. What am I missing?

Thanks for any help. :) Thomas