Why the cpvc file size haven't changed when split Video Demo and deleted item in labrary from Captivate2019?

[Vicnent_W]

Why the cpvc file size haven't changed when split Video Demo and deleted item in labrary from Captivate2019?

The source file:

Have been split file:

Why the file size not changed?

[Lilybiri]

Editing in Video Demo is non-destructive. Published file will be smaller.

[Vicnent_W]

Thank you! I care the cpvc file size not the published file. Because I have many  large size of  cpve files to store in disk.