Hello,
When I tried to convert any file to mp3 using Switch 1.05 OS X, it quits for no reason. Upon further inspection, I get the permission denied for lame in the Console.
Here is a way to fix Switch's lame encoder so that it will work. Note that this assumes Switch is installed in the Applications folder.
1. Open Terminal
2. Paste the following:
chmod 755 /Applications/switch.app/Contents/Resources/lame