It is not necessary to have a Dropbox account to access the files.

If you have an account, you may sign in.

If you do not have account, click on "or continue with download only" at the bottom of the log-in screen.

Most operating systems will "unzip" (decompress) the files automatically when you open them and place the contents somewhere outside of the zip file. Or, you may again "right click" (or left click if you are using a left-handed mouse!) on the downloaded .zip file name, and select the option for expanding or "extracting" the files. It is helpful to save the files for each class in their own folder or sub-directory.

The extracted mp3 files may be imported into iTunes or Windows Media Player, and either played directly, synced to an mp3 device or burned to an audio CD using the appropriate software. The pdf files may be opened with Adobe Acrobat Reader, available for free at adobe.com.