Change the aspect ratio of a video? Make sure not to miss the robust video editing software - Joyoshare Media Cutter. With a simple operation interface, it is friendly for everyone to losslessly cut and fully edit various media files in MP4, MOV, MKV, HD, 4K, AVI, MPEG, WMV, MP3, OGG, AC3, FLV, 3GP, WebM, etc.
In addition to the impressive cutting feature to cut and split audios and videos frame by frame with 100% original quality preserved, Joyoshare Media Cutter is also remarkable of its diversified editing tools. With it, you are able to optimize the video by aspect ratio changing, special effects applying, watermarks and background music, video volume adjustment, easy cropping and rotation, and more in a fun manner.
Then convert the 4.3 to 16.9 in a different program - NOT HANDBRAKE (I use a copy of AVS Video Converter, there is an 'aspect conversion' there, 4:3 to 16:9). Convert to a separate folder lets say call it widescreen The files will remain LARGE, over 2gb NOW you can add the widescreen files to Handbrake and compress as needed. When I outplay my master and the convert it to an MP4 the aspect ratio changes as soon as I open the file on another system. All the files have the right aspect ratio on my MAC (in QuickTime player, Preview and FCP) but they become 4:3 files as soon as I send them to the client via FTP or if I open them on a PC. The Elgato software lets you set an aspect ratio—4:3 or 16:9, while Easy VHS to DVD Capture doesn’t. The Elgato software lets you choose to export video either as H.264 or MPEG-4 files. 4:3 is a rectangle and 16:9 is a wider rectangle. This may sound overly simple, but it really is pretty much the whole deal in a nutshell. To help get your head around this, I found it helps me to think of 4:3 as being equivalent to 12:9. (4 units wide x 3 = 12, and 3 units high x 3 = 9. Therefore, 4:3 = 12:9.) So now you have 12:9 versus 16:9.
It's a very light-weight desktop program running on both Window and Mac, which takes up less disk space and causes no extra load of your GPU or CPU.
Change Aspect Ratio Quicktime
Key Features of Joyoshare Media Cutter
Quicktime Change Aspect Ratio
Provide real-time preview window and built-in video editor
Flexibly change the video aspect ratio without distortion
Accept many formats and freely modify output quality
Quicktime Player Change Aspect Ratio
Cut and crop a video in a customized way