Today it seems like Discogs started to compress all API-answers, so the display frame on the demo page was not working earlier. I’ve replaced the WP_HTTP way of getting the remote file to cURL.  I’m trying to get it to work with the more cross-server WP_HTTP-class and will update the plugin later today. The update will also include some other good stuff.

UPDATE: Seems like it was a temporary problem with Discogs. it works again now. Let me know if there are problems again.