After I release the chinese version screencast yesterday, many friends sent me advices. Today, I recorded it again with english so that more people can see and understand it.
The attached file is a screencast of how to build a youtube-like video sharing web application using activemessaging plugins and how to backup the files into amazon [...]

几个星期前就有录一段视频文件的想法了，但是由于懒惰总是给自己找借口，今天终于讲近期的一些项目经验加以总结然后做了一个demo,并且制作了一个screencast.附件中是demo的source code，简单来说就是一个接收用户上传的video文件，然后通过异步的方式交给后台processor 进行视频转换成flv格式，并且把该flv文件上传到 Amazon s3上。
你可以下载 screencast 和source code
欢迎大家多提意见