Hacking Smash Bros Brawl DVD split size.

[nekuneo]

I'm trying to rip my copy of Super Smash Bros Brawl (US) using Wii DVD dumper (cIOS) v1.2 by Waninkoko.

I'm trying to rip it to my USB flash drive so I selected the options to do that and then as Brawl is a Dual Layer Game I chose the option for that.

Now my question is, the fourth thing asks me for "DVD split size" and has a bunch of file sizes. What do I choose for that?

Thank you

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Edit: I got past this part but now I get an error 20 seconds into the ripping process, anyone know whats wrong?