Louis Letourneau

It's more complicated than that. If your video is bigger than 4Gb, you also need to change the offset vectors from vector to vector, the chunk method too and everywhere...

Oh you didn't mention the size of your video. Everybody else was giving out files bigger than 4GB. I will open another ticket.

not too sure what's the process of voting in PyAV, but I too would like this functionality merged in.