Hi, thank you for your prompt reply.

Let me describe my situation.

I used to have the Band in a Box 2008 UltraPak, but then I thought I lost the package. At the same time, my computer crashed, so I had to buy Band in a Box 2010.

Just last week, somehow I found the 2008 UltraPak in my brother's room. So I tried to install the RealTracks sets in the UltraPak onto the BIAB 2010.

But when I opened the BIAB, it seems to me that the RT sets are not there. They are installed in the bb/realtracks folders. But when I click on the What add-ons do I have page, then I didn't see them.

My sincere thanks,