hdvideoconverter guides & articles
12 in-depth guides on HD Video Converter for Mac and related topics.
Video to MP4 how-to
Video to MP4 how-to
How to Export an iMovie Project as MP4 (Not MOV)
Export your iMovie project as MP4 instead of MOV by choosing Low, Medium, or High Quality in the File > Share > File dialog.
Video to MP4 how-to
How to Convert AVI to MP4 on a Mac (and Why You Should)
Convert dated AVI files to modern MP4 on a Mac to fix playback, shrink size, and unlock editing. A clear step-by-step guide and the reasons it matters.
Video to MP4 how-to
How to Convert MKV to MP4 on a Mac the Easy Way
Convert MKV to MP4 on a Mac so QuickTime and iPhones can play it. Learn what MKV is, when remuxing is instant, and follow a clear step-by-step workflow.
Video to MP4 how-to
How to Convert MOV to MP4 on a Mac Without Losing Quality
Convert MOV to MP4 on a Mac to fix compatibility and reduce file size. A clear step-by-step guide plus the real difference between the two formats.
Video to MP4 how-to
How to Convert Video to MP4 on a Mac (Step by Step)
Learn how to convert any video to MP4 on a Mac with a clear step-by-step workflow, the right codec choices, and tips for quality, size, and compatibility.
Video to MP4 how-to
How to Reduce Video File Size on a Mac Without Losing Quality
Reduce video file size on a Mac without wrecking quality. Learn the three levers that control size, how to compress to MP4, and a clear step-by-step workflow.
Video on Mac & iPhone
Video on Mac & iPhone
QuickTime Can't Open Your Video? Why and How to Fix It
Troubleshoot the QuickTime 'cannot open' error: learn which formats it supports, which it never will, and how to convert your video.
Video on Mac & iPhone
The Best Video Format for iPhone and iPad in 2026
The best video format for iPhone and iPad explained: why MP4 with H.264 plays flawlessly, when HEVC makes sense, and how to convert any clip for Apple devices.
Web video (WebM/HTML5)
Extracting audio from video
Codecs & containers
Codecs & containers
H.264 vs H.265: Which Video Codec Should You Use?
H.264 vs H.265 compared for Mac users: file size, quality, compatibility, and power use, plus clear guidance on which codec to choose when converting video.
Codecs & containers
Video Codecs and Containers Explained for Mac Users
A plain-English guide to video codecs and containers for Mac users: what H.264, H.265, MP4, MOV, MKV, and WebM really mean, and how to pick the right combo.