Multiple Item Enclosures in RSS 2.0

I'm gathering information for the RSS Advisory Board on the issue of multiple item enclosures in an RSS 2.0 feed.

On first reading, it appears to me that an item must contain either zero or one enclosure elements, but I have to do more research about how existing implementors have interpreted the specification.

I created a test feed that contains a single item with two MP3 enclosures. Surprisingly, this feed validates in the Feed Validator and RSS Validator. I'd like to find out if any podcasting-capable aggregators retrieve and present both of the feed's audio files.


I read many sites and even the RSS spec although some feedreader can and some cannot. I hope to find out any solution for multiple enclosure e.g. more than one mp3 in an item.

i know .m3u is a file which contains links to more than one mp3 (enclosure item).

if you have alternative to feed more than one enclosure. please advise.

In Mozilla Firefox, only the first enclosure is displayed...

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