Feedburner won't read your feed if it's over 512k. Our podcast (http://herdingcode.com) has been around for 3 years now, and returning all items puts us way over that limit. We've had new listeners request that we include them all, though, and I'm wondering if that's easily possible.
I'm thinking I could hack around with feed-rss2.php and add some conditional logic that puts full details for the most recent 75 shows and truncated descriptions for all the older shows. Has someone already done this, or got some tips on how to set it up?