Welcome to the forum
Did you update to the latest version 5.0.3?
Welcome to the forum.
There was an intermittent Bug, that resulted in Project File Bloating.
I agree with Ann's suggestion to update PrPro.
There is more background in a couple of threads here, on "Project bloating," plus this BLOG on update fixes.
i havent make the 5.3 ...
but when i will do it, what can i do for my problem ? because the project will rest in 500mb and so so long to load file, new cut , ect...
When the Bug bit, I do not recall a worlkarouond for it, other than starting over, which is never a good thing.
As the Bug was fixed with the update, I would think that would be the best course of action.
However, you might want to do the Search for those other threads on "bloating," as there could be workarounds, that I just do not recall.
After installing the 5.0.3 update, the best shot might be to
delete all media cache and preview files and then import
the "bloated" project into a newly created project.
you are great, it's ok and my project is 7mo !!!