Video Editing Question

[Chauffard]

An AVI 720p video is 38mins long and 1 404 000KBs

Using a free online video trimmer I trim it to 15mins keeping the same settings, and the trimmed version is now
1 300 000KBs

How can this be, what am I doing wrong ?

[Ikemi]

What online video editing tool are you using? I’d hazard a guess that it might have an “output” section that allows you to choose resolution, codecs and bitrates … It’s likely one of these factors that’s causing your output file to be large, even though you’ve trimmed the video down considerably e.g. check the resolution is not outputting at 1920 x 1080 (HD), if the original video is only 720P

[Goaty Bill 2]

Agree with the above.

It may help to check both the original and the output using MediaInfo to get the actual details of the files to get actual sizes / dimensions and encoding details.

[Disastrous]

Probably exporting at a higher resolution/bit rate than the original file.