With YouTube, you can visit it every day for fun, news, videos or whatever. Chances are that you sometimes want to download the YouTube videos as MP4 files for your multimedia devices, like iPod, iPhone or PSP, so that you can watch it on the move.

This guide aims to telling you how to free download YouTube video and convert YouTube to MP4 for your iPod, iPhone, PSP or other MP4 players.

How to free download YouTube video?
There are two way to free download YouTube video:
1. with free online flv converter;
2. with firefox
This guide is also fit for other video websites as follow video list;
http://www.aimersoft.com/free-download-video-list.html
More details about how to free download YouTube, Yahoo, Google, Steam Video, you can follow this guide:
http://www.aimersoft.com/tutorial/free-download-youtube-video.html

How to converter YouTube video to MP4 for your MP4 player?

However, YouTube video is usually in FLV format, which is a preferred file format that is designed for web playback. To playback YouTube video on your iPod, iPhone, PSP or other devices, you can't download it as MP4 file directly, but need a video converter to help you convert it to MP4 instead.

1. Download, install and run best video converter
Thankfully, there are many video converters available for you. And most of them offer free download. You can easily get one from Internet or free download one here.

2. Upload YouTube video
Click "Add…" or "File"to import your YouTube video to this YouTube to MP4 video converter. There are four buttons including Remove, Clear, Move Up, and Move Down for you to manage your source files. And the following is its main interface.

3. Edit the downloaded YouTube video (Optional)
If you want to edit your YouTube video, just click "Edit" button on the tool bar. There are many options for you.
Preview the original and output video;
Crop the frame size of YouTube video to get the part you want;
Add special effects like Old Film, Gray, Emboss and Negative to YouTube video;
Trim the video into multiple clips;
Decorate YouTube video by adding picture or text watermark to it.

4. Set the output options as MP4 format
Select the proper output format and destination folder for your YouTube video. Here we choose MP4 AVC (*.mp4). You can also choose the format in the category of iPod, iPhone or PSP.

To satisfy your every need, it allows you to configure the resolution, frame rate, bit rate to maintain the high quality of YouTube video.

5. Start to convert
After all necessary settings and editing, just click "Start" button to convert YouTube to MP4.

Helpful Tips:
1. Snapshot – take a screenshot of your favorite picture from the YouTube video and save as JPEG or BMP format;
2. Merge into one file – merge several clips into one file as you like;
3. Apply to all – convert YouTube videos in batches to save your time.

Download Aimersoft Video Converter

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