Do you know where I can download it? It seems the website is down at the moment.
I should mention I actually do own a PC, it's just that I use my Mac more often so having a Mac trimmer would be best. But if there is a PC trimmer that is better, I would rather just use that just to make sure I don't run into errors.
I just tried NDSTokyoTrim, and it seemed to do a pretty good job. Kept all settings at default, just selected my rom folder and clicked "trim". Easy as pie...but how well does it work?