Is there any technical reason for not being able to play .fcm movies directly in fceux? I mean I understand that fm2 is the new thing, but I've got a folder full of .fcms that a) I don't want to convert all of them and b) if I did it would take up a ton of space.
Edit: Actually I just thought of something. The fm2 format is plain text, which is great for when you're making a tas, but as I mentioned, it's huge. Of the two .fcms I tried it on, one grew to 20x its size and the other was over 100x (8 kb -> 850 kb). But compressed .fm2 shrinks it down really small. So why not make a custom extension (.f2c or something) that would just be a renamed, zipped up .fm2, which would be the default in the emulator, along with .fm2? I see that the movie browser already supports compressed fm2s, but I think making it the default would be ideal. That way you get the best of both worlds, the flexibility of fm2 without the insane, monstrous filesize increase.