Hmm. Having trouble with this.
Outputted 99% as mentioned, from one gamecube file. I decided to run with it, typed in "copy /b 0.bin GAFE.iso" and got an iso that was exactly the right size. I opened it up with Dolphin and got "ERROR: Trying to compile at 0. LR=80005a74" and subsequently "iCacheJIT: Reading OpCode from fffffffc. Please report."
Now before you start saying "maybe it's just one of those games that crashes immediately," well, it's not. It's Animal Crossing, which was marked as green for completely playable. Other games ripped from other programs work fine.
Help?
EDIT: So, I hear it's a bug with cIOS rev14.
Does cIOS rev15 fix this?
DOUBLE EDIT: Apparently not :/
TRIPLE EDIT COMBO: Actually, I did both of those using SuperDump v1.2. Trying with SuperDump v1.3 (with cIOS rev15) right now.
M-M-M-MONSTER EDIT: Nope. That doesn't work. So I either have to temporarily downgrade to cIOS rev13 or use the terribly slow one I had been using that otherwise worked well. Sigh. I hope downgrading to cIOS rev13 is as simple as running the rev13 installer again.
EDITSTREAK LIMIT BREAK: Tried running the cIOS rev13 installer, using internet connection, it gave no errors. However, attempting to rip the game thereafter still gave me the 99% issue. Either that was actually rev13b (it didn't specify), my simplistic downgrading method didn't work, or I'm just boned.