Initially, I tried to suppress it on a "group of lines" basis. But it quickly became apparent that this wouldn't really work well, or at least not the way I was implementing it. Things just got too complex for too simple a problem.

I have re-done it now, and TESTED it this time too.
Now, it only outputs a line if the value of the line has changed.

So triggering something on "Genre", or any line other than the ones starting with 'F', isn't going to work any longer.

Rather than triggering on "the final line of the attributes" (formerly Genre), instead you could trigger on the first '#' line after an 'F' line, which gives the same effect.

[EDIT]
Or you could just trigger on any '#' line that begins with a FID that differs from the previous '#' line. Same idea, possibly simpler.
[/EDIT]

A bit of short-term pain (my apologies for that), but the end result is much better I think.

Cheers!