There's already a pack from PCMActu and i downloaded it. I would like to know if i will be able to put the PCMDaily Expansion pack over it when it comes out? Or if i will have to clear everything prior to install PCMDaily's pack?
It's always better to have the clean game to install the DB. If you still haven't modified your game with any pack, though, you can copy the main PCM folder, which should still be 'clean' (you can make a .rar of it to save space). This is also the correct way to install more than one DBs to your game Although it seems some directories have changed (at least for Stages), and some files go now in My Docs, but I don't think that should be a problem.