GOM Player 
GOM Encoder
1) Video Control: You can control the Brightness/Contrast/Saturation/Hue
2) Flip: In the case the video shows backwards, this will allow it to be shown correctly.
3) Full Screen: You can change these settings even while watching in full screen.
Screen Size Selection
1) Overlay Mixer (Recommended) : This is the most standard output type. It utilizes the overlay function of the video card.
2) Video Renderer : Older video output type.
3) VMR 7 – Windowed mode : Windows XP® Built-in Output type for Windows XP
4) VMR 9 – Windowed mode : Output type that can be used if DirectX 9.0 or later version is installed.
5) VMR 7 – Renderless mode : Windows XP® Built-in output type for Windows XP ☞ Your subtitles and video can be seen more clearly.
6) VMR 9 – Renderless mode : Output type that can be used if DirectX 9.0 or later version is installed. ☞ Your subtitles and video will show clearer than with Video Renderer.
Notice) When the GOM Player in installed in the Normal Mode or TV Output mode, it will be automatically set as Overlay Mixer. If the GOM Player is installed in High-Quality Mode, the VMR 7 or 9 Output Type will be automatically selected.
☞ For more detailed information, refer to the Configuration Wizard
Video Screen Size
* The Video Screen Size will allow for expanded space on the video.
* If you have your subtitles set to ‘Display on Video’ it will be positioned to fit the expanded space.
1) Do not keep aspect ratio: When changing the window size the of the video, it will not keep the aspect ratio.
2) Aspect ratio corresponding to the source input (default): When changing the window size the of the video, it will keep the aspect ratio.
3) Stretch screen by aspect ratio: Video will fit the entire screen while keeping the aspect ratio.
1) Monitor Output: It will be set to the output of the user’s monitor
2) TV Ratio: You can set your TV ratio to (4:3) or (16:9) for HDTV.
3) Screen Ratio: There is a user-defined ratio for those who wish to set it on their own.
* Deblock
‘Blocking’ happens because the bitrate is too low. The video will show as block-like squares.
If you use the ‘Deblock” option, you can reduce the blocking effect and will make the video better to watch.
* Video Effect
1. De-interlace: When playing a video made in the interlace type, sometimes there can be vertical lines.
By using the De-interlace option you can reduce the effects of the vertical lines.
2. Smoothen: Will smooth the video and reduce the noise.
3. Sharpen: Will sharpen the video and make it clearer.
4. Noise: Adds noise to the video.
☞ Color space: There is a RGB and YUV types to choose from. If you use the YUV, overlay is possible and will use less CPU space than RBG. If the Color space option is incorrect, the screen can either not show or be very slow.
If there is a problem with screen positioning, click on the Output Offset.
You can change the original size when watching your video.
1. In the case that wthe video quality is too low;
=> If you increase the original screen size, you may improve the quality of subtitles when you use the Display on video (TV-OUT) option.
2. In the case that the video quality too high;
=> If you decrease the original screen size, you may minimize the choppy images for low-performance computers.
1) Under ‘Original Screen Size’ set it at 320x240 and
2) Under ‘Changed Screen Size’ set the new size at 320x240,
=> you can reduce the choppy video play.