To resolve this issue, try installing he following codec:
If the issue persists, please perform clean uninstall and re-install of RealTimes by following the link:
If you are still unable to trim videos, please provide the following information:
• What happens when you try to trim?
• Is this happening to all videos or just with a particular one?
• Are you able to play the file that you are trying to trim?
• What is the source file format?(extension)
• If possible, can you send us a screenshot? (Refer this link: https://customer.real.com/hc/en-us/articles/204039473)
• What version of RealTimes or RealPlayer is installed? (See https://customer.real.com/hc/en-us/articles/204039513)
• What is the operating system of your computer (Windows XP, Vista, 7, 8, 8.1, 10)?
• Do you have any security software installed (Norton, McAfee, AVG, etc.)?
The more specific you are, the better I will be able to assist you.