hey all,
I'm sure all you experienced P2-ers know all about this, but I didn't, and it killed me for a good 3 minutes till Google solved it.
All files from a P2 store once copied appear as locked. There are a lot of files from each P2 card. Changing the status one by one would be silly and time consuming.
Hold Shift while you select 'Empty Trash.' This should override locked protection.
A handy tip for new P2-ers, and a handy OSX tip in general.
Sorry if everyone knew this - I didn't - and it wasn't in the donkey...