[Broken video, please report] Top 13 Kids' Dances That Don't Need To Be Animated In MMD

Watch from #4:35!This video is broken. I tried uploading two videos at once, by opening browser's Back button in a new tab while uploading in one tab, and then clicking Upload in the new tab. It let me select a new video and I thought it was working.But after the first video finished, thumbnails showed scenes from the second video, which was around 30%. I checked and submitted the first video, this one, while the second was still uploading. However, the URLs for the two tabs were the same, with 37977442.You can see how this video says it's 15 minutes long, but if you seek to the end, the time says 9:15. The second upload was overwriting the first. I cancelled the second upload to see what would happen, so I don't know what would have happened if I let it complete. I am reporting this video as a bug to Nico Nico.UPDATE: this video is blocking further uploads. Tried uploading it again at least three times, and all of them failed. Not sure if deleting this video would change that. Tried different audio and changed start frames and timing. For non-broken video, see http://youtu.be/H-V8wKEyuII

http://www.nicovideo.jp/watch/sm37977442