How to Add a Custom Watermark to Recorded Videos
Adding a watermark to videos recorded with oCam helps clearly indicate the source of the video and reduce the chance of unauthorized use by others. A watermark is a feature that inserts a specific image into the video, such as a logo, text, or icon, to identify the creator or ownership. This is effective for protecting the uniqueness of the video and promoting your brand.
To add a watermark in oCam, first click 'Tools' in the top menu of the oCam main window, then select 'Options'. When the Settings window opens, click 'Watermark' in the left menu to go to the watermark settings screen.

On the watermark settings screen, you can adjust several options. First, if you check 'Use Watermark', the selected image will be inserted as a watermark in the recorded video. You can choose the image to use as the watermark under 'Image Path', and PNG, JPG, and BMP formats are supported. PNG format in particular also supports images with an alpha channel (transparency), so you can use logos or images with transparent backgrounds.
The 'Opacity' setting adjusts the transparency of the watermark image. If the opacity is set to 100%, the watermark image will appear fully opaque. The lower the value, the more transparent the image becomes, allowing it to blend more naturally into the video. This lets you adjust the watermark so it does not interfere with the readability of the video.
The 'Position' setting determines where the watermark appears in the video. For example, you can choose the top left or bottom right so the watermark appears in the desired area of the screen. This allows you to place the watermark without covering the main content of the video.
For example, if you set a specific logo image as the watermark and start recording, that image will appear as a watermark at the selected position in the final video. A watermark added in this way makes the source of the video clear and helps viewers easily identify the creator.
If you want to create your own watermark image, search for "create watermark" on a search site to find various design tools and methods. For example, you can use graphic editing programs such as Photoshop or Canva to create a logo or text, or use an online watermark generator to easily create a distinctive watermark.
Using the watermark feature in oCam, you can give your videos a more professional and secure finish with just a few simple settings. Try creating your own unique videos with the right image and settings.
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BIOS and CMOS Error Messages and How to Fix Them
โถ BIOS ROM Checksum error
This error appears when there is a problem with the ROM that stores system information.
It occurs when there is an issue while reading the information stored in CMOS. In this case, enter CMOS SETUP and check whether each setting is configured correctly for the current system state.
After completing the settings, select 'SAVE AND EXIT SETUP' to save the changes.
If the system is old, the ROM itself that stores the BIOS information may be damaged. In that case, it is recommended to have it inspected at a motherboard repair shop or service center.
โถ Press [F1] to continue
This message usually appears when the keyboard or mouse is not connected properly.
Please check whether both devices are connected securely to their connectors.
It is also a good idea to check whether the hard disk information is set correctly in CMOS SETUP.
โถ CMOS memory size mismatch
This error occurs when the system cannot properly recognize the memory (RAM).
When new RAM is added, CMOS usually detects it automatically, but in some cases the correct memory size is reflected only after running CMOS SETUP.
Enter CMOS SETUP, check the settings, and then reboot the system.
โถ NO ROM BASIC
This message appears when an error occurs during booting.
It usually occurs when the system cannot boot from drive A. In this case, you need to insert a bootable floppy disk into drive A or change the boot setting to boot from the hard disk drive.
Similar error messages include 'Diskette Boot Failure' and 'Invalid Boot Diskette'.
โถ CMOS display type mismatch
This error occurs when there is a problem with the graphics-related settings in CMOS.
It happens when the graphics type in the 'Video...' item in CMOS SETUP is not set to EGA/VGA.
Since this is the default setting used by most graphics cards, please make sure to check it.
โถ Cache Memory Bad..
This indicates a problem with the cache memory installed on the motherboard.
Cache memory is used to improve system speed, and on some motherboards, this error may appear if the cache memory fails.
In this case, you can replace the cache memory or try setting the cache memory usage option in CMOS SETUP to 'Disable'.
The same symptom may also appear when cache-related settings such as 'Cache Write' are configured incorrectly, so please check those settings as well.