how to free download videos from website, like youtube?

[CrayDeng]

I just access to the Youtube website for a few month, and I wanna download music videos from it. I need a high speed downloading tool to help me to maintain the quality and convert the formats, of cause it would better be free.
I’m sorry to wasting your time by asking this stupid question, but I’ve used many softwares which I searched from google, but It’s either function limited by trial edition or not a free edition.

[CrayDeng]

I just access to the Youtube website for a few month, and I wanna download music videos from it. I need a high speed downloading tool to help me to maintain the quality and convert the formats, of cause it would better be free.
I’m sorry to wasting your time by asking this stupid question, but I’ve used many softwares which I searched from google, but It’s either function limited by trial edition or not a free edition.

[onlydarksets]

Here's what you need:

1. Get Firefox
2. Get Video Download extension
3. Get Super
4. Get TCPMP

Here's how you do it:

1. Find a YouTube video
2. Download it
3. Use Super to convert the file from FLV to AVI
4. Use TCPMP to play it back on your phone