I obtained the audio files of his Life is Worth Living series. Each last about 25 minutes or so.
There is a link on the official site where you can download them for a buck a piece (there are 50 of them). Or, they can be obtained in real audio from an EWTN server, although the audio quality of the real audio set is not that great.
Lastly, you can order the 25 CD set (two talks per CD) from the link off the official site for abour $85.
If you buy them, you have to figure a portion of the the money might help fund the cause.
The audio set I have is excelent..they must have remastered them. I got them in mp3 format from a link on the web that is now dead, but I'm gonna buy them from the official website to make it allright. They're good for ipods and such.."Godcasts" thay call 'em. Good to listen to if your doing mindless work throughout the day.
The real audio set from the EWTN server was a recording of their broadcast, so they were free.