In Snow Leopard the Play / Pause media button (on the F8 key) opens up iTunes. How can I disable that? Preferably keeping the old Leopard behaviour, so I can use it to control other media applications (e.g. Spotify).
Some French mac user did a great job to make a patch for this bug. It patches rcd, which is updated every mac version (so keep the patch up to date with this topic ).
You can download the file here: MMFix.dmg.zip