aTube Catcher is a simple application that allows you to download videos from YouTube, XTube, Dailymotion, MySpace, Stage6, Google and export to many formats (MPG, AVI, MP4, 3GP, 3G2, WMV, PSP, MOV, FLV) with the quality that you choose, also has templates, so you can encode your videos to standard formats as DVD, VCD, IPOD, PSP, etc. Supports "Authentication" in YouTube, so you can download private videos (of course, if you have athorization).
Not only you can export the videos from YouTube, XTube, Dailymotion, MySpace, Stage6, Google, also you can convert/recode any video or FLV (downloaded from other site or with other software) to the mentioned formats. YouTube Catcher also can download and encode any FLV if you provide him with the direct link.

You can set the encoding options such as size, framerate, aspect, video codec, fileformat, audio codec, audio sampling, quality, motion search, etc.

Now includes Batch file processing, just paste the links in a plain text file, and YouTube Catcher will download all the videos to the specified folder, you will not have to wait one by one anymore.

It is recommended download the additional MPlayer package to view the output videos, if you download that package you will need DirectX, Windows XP includes it but if you have an out dated version of Windows (like 98) then you will need update your DirectX.