For a long time, I thought when you do a box set, you're...

For a long time, I thought when you do a box set, you're giving up; you're saying, 'OK, I don't have anything left.' But now I've listened to some of the old stuff I haven't heard in 20 to 40 years with fresh ears. It's like, 'Oh yeah, I can see where people might want to to hear some of this stuff that didn't make it onto the records.'