Need Help With Mlv_Dump [Quite Urgent]

[jippalippa]

Hello.
Deeply sorry to disturb.
I need to fix some pictures that have a very wrong black level, but sometimes i really get confused with the instructions to use mlv_dump (Which i have been told can fix the problem)
I can barely use it to export the DNGs (from a raw MLV).
Could somebody kindly explain me a way to do the same thing (extract the DNGs from a raw MLV), also fixing the black level?
I have a Canon 5D Mark II, and i have read, here on the forum, that i have to use this code:

mlv_dump --black-fix=1024 -o out.mlv in.mlv

..But where, when and how do i need to use it?
Thank you so much,  it's very urgent.
Cheers.

[dmilligan]

You type that into a command prompt (cmd.exe on Windows or Terminal.app on Mac)

Replace 'in.mlv' with the actual name of the mlv file you want to fix, and make sure it and mlv_dump are in your current working directory (use cd to change directory)

[jippalippa]

Thank you very much.
I'll try it later