How to Convert Your Downloaded YouTube Videos to MP4, AVI, MOV, MPEG, MKV, MP3, etc. on Mac?
With the help of Amediasoft YouTube Video Converter for Mac, you can convert youtube videos to all popular formats like AVI, MP4, MPEG, MOV, MKV, 3GP, MP3, M4A, etc, so that you can enjoy them on your portable players like iPad, iPod, iPhone, PSP, easily. Let’s get stared.
Step1: Download and Install Amediasoft YouTube Video Converter for Mac
Step2: Import Videos
There are two ways to import your videos:
(1)Click “Add” button to load the videos that you want to convert.
(2)Drag the video to the convert directly.
Step3: Set Output Profile and Output Folder for Your Converted Video.
Select the output format you want from the "Profile" drop-down list. Select the "Output Folder" button to select your output destination file.

Step4: Select the Settings as You Wish
Click the “settings” button to open the settings’ window to set the video parameters, such as resolution, frame bite, encoder, and bit rate or audio parameters, such as sample rate, channel, encoder and bit rate, etc.
Step5: Use Additional Functions to Make Your Video More Vivid.
(1) Crop Video- crop off the black edges and adjust the size of video play region
By using the "Crop" function you can crop the black edge of your video and you can also drag the line around the video image to adjust the video play region to fit for your players.
(2) Trim Video Clips-Split Video
The "Trim" function can be used as a Video Splitter for you to get any time-length video episode. You can set the "Start Time" and "End Time" to set the time of the clip or you can directly drag the slide bar to the accurate position.

(3) Effect Function- Give effect to Your Output Video
By clicking the “Effect” button, you can use “Effect” function to adjust your output video such as brightness, contrast and saturation

(4) Video Joiner-Merge Your Videos into One
Ticking “Merge into one file” in the main window, this converter can be used as a Video Joiner to help you merge several videos into one output file.
Step6: Click the “Start” Button to Start Conversion.
After doing the steps above, you only need to click “Start” button to start your conversion. This converter can also support batch conversion with a task list.