I'm unsure of whether or not someone owns the rights to these. I haven't been able to find any information on this. I actually got these from someone else who downloaded them in Real Audio format from a site which he says no longer exists. So if you know whether I need to ask permission or not, please send me email using the username 'robert' at the domain 'otaku.org.'
These can be a little bit tough to listen to because Ajahn Chah speaks for a while in Thai and a translator then paraphrases what he said in English. This means that you don't get the continuous flow of a normal talk. Regardless of this, these are still good talks worth listening to!
If you feel these talks are of use to you, and want to show your appreciation, please make a donation to Dhammasala Forest Monastery. (You can do this via credit card on the web site.)