Yeah, 201 files is a lot. I'm not sure at all if that's the reason though.
But if I, for one, type:
derof -v Layout_y.nif000003.ROF
It works fine. Lists like it should.
If I type:
derof -e Layout_y.nif000003.ROF
It 'seems' to work fine. It takes a second and then says that it was successful, but the files never appear anywhere.
That was the case with Layout_y.nif000003.ROF. If I try with
this Effects_000000.rof file, which has 201 files inside, it will fail to list and/or extract.
Be sure to look into it, and if you need more ROFs, just ask away
