I purchased BIAB 2015 Plus Pak with the 49 Pak add-on download version from the PG website.Although the DL was extensive with a few time outs I was able to get things up and running in what I thought would be "back to normal" in my use of the program.It didn't take long for things to get a bit annoying Part 3 Not Found, access violation 00ac1555 in module,bbw.exe not found,an error occured while trying to replace the existing file failed;code 5 and a crash.A few more instr. parts (5,7,3,6) not found.Biab has been pretty solid for me so i'm sure with the updates and tech support I will get things back to normal and begin to enjoy the 2015 program as I have been with previous releases.I will be upgrading my OS to Win 7 32 in a few days with the help of a qualified tech which will require re-installation of BIAB and all of my software programs as well.Sample Tank has sound libraries that are sold separately and contain over 6gb of useable sounds,can these be used in BIAB with Sample Tank as a VSTI? I have noticed some different file extentions as well, BIAB instr. have TGS and some in SampleTank are STIP,STH,STW..are they all compatible with BIAB and RealBand?