Please i do not understand. I want to buy BIAB MAC 2010 Ultrapk with all the realtracks and all the realdrums. What does it mean when it is mentioned that there is a bonus with free Bonus 10 PAK with RealDrums Set 16: Urban Pop and for only 25 $ an upgrade 20 PAK with RealDrums Set 23: Classic Jazz and RealTracks Set 61: Ballads and ....Does the ULTRAPK contain really all the realdrums and all the realtracks ? Could someone explain to me...thanks in advance