I got that Don Caballero CD around 2002-3 but didn't get into it. I guess I wasn't ready for math rock at the time.
I ended up trading it away around 2006 but have since heard a few of their others (
Don Cabellero 2,
What Burns Never Returns, and
Punkgazm). I haven't spend enough time with any of them to really like them though. I guess there are other bands in the genre I prefer. But I have meant to revisit them including
American Don. Maybe I'll go DL it.