Heh...at one point he had some audio interviews on his website...my sister and I listened to some, as they related to his time when filming LOTR. The interviewer was a Scot, too. You could understand them as long as you paid a lot of attention, so long as they were speaking calmly. Every so often they'd crack each other up...and there was no WAY you could decipher it. Just a lot of Scottish sounds. ;-)
Sigh.
Scottish accents.
The subtitles on DVD features fix that. It's great!