iTunesASUHelper stole my /usr/local/bin !!!
I updated to iTunes 8.1 and wondered where my ffmpeg binary went; then I found this explanation, which was spot on: This may be useful to some people — I’ve solved my problem but it may bite others. My boot disk is partitioned. The boot partition was too small. I put /usr/local on another partition [...]
Also tagged apple, bug, osx