too_many_recent_calls issue

There is frequently reported issue about YouTube quota. I am trying to solve it, did some requests optimization to see will it help or not, we should see results in few days.
If it will not help, I will also try to use YouTube developers key, as it may help to increase quota limits.
I am dealing with this issue.

Updates

I have not detected any major issue. Only problem is that some videos are not being downloaded occasianaly. It is not really clear what is the reason, but it maybe related to service or YouTube load. Maybe some blocking of excessive requests or something. I increased number of retries for downloads and this problem should be less annoying. At least it was in my tests.
Please keep reporting when there will be some problem that I have not noticed.

Content type bug fixed

Fixed bug when for mp4 files, content type was flv.
It was a problem for some client applications.

New features - HD, bookmarklets, standard feeds and playlists

There is small reward after last week downtime - it is a new release of the service with several new features.

• Standard feeds - like Top Rated, Most viewed, etc. In the converter section.
• Playlists - it is possible to convert playlists too.
• HD format support - only when video is available in HD, so it is mostly usable for downloads and channels, not good for favorites, playlists and standard feeds.
• Bookmarklets for downloads - it is no more necessary to copy/paste URLs, just click link.
• Banners! - you may notice several new banners on the page.

Please check it and let me know if there is any issue.

Youtube changed format for downloading flv video files

RSS Handler was updated to support new YouTube video download format. Previous format (Location header of http://www.youtube.com/v/#### with link to get_video.php) stopped to work and was redirecting to SWF player. 

New format is supported transparently, users of RSS Handler don't have to update their feeds and all links will work as is.