Image sequence to RGBA file

[5p1r17]

Hello people,
I run into a problem here. I'm converting an image sequence to rgba and getting a very huge file size.
My command is

Code: Select all

convert -monitor V:\Background2\background_*.jpg V:\BG5.rgba

with more than 3000 images inside, my BG.rgba file is 30gb, but originally sequence is just 800mb.
Is there any way to decrease the size of .RGBA format?
I can't use any other formats unfortunately

Also, I've tried -compression options, but the file size remains the same.

[snibgo]

The RGBA format doesn't compress data. If you want compression, use a different format.