Hi All, I am experiencing exactly the same problem while trying to install VFR volume 8 Scotland south. I have just inserted disc 7 (the final disc) after about 70+ hours of none stop (even by getting up 3 or 4 times during each night to check on the installation process) installing.
At first, I thought there was something wrong with disc 1 however, after cleaning it thoroughly the extremely slow process continued, so I would start again by cleaning the disc thoroughly, turning off Kaspersky, unplugging the router and turning off anything that could place my PC into screensaver or standby, but this made no difference at all, and trying to contact PlaySims or Horizon was futile.
I already have all the latest scenery for England and Wales from Horizon/PlaySims and all the airports for the same from UK2000 and Aerosoft, I also have installed Treescapes and not to forget FS Global Ultimate, all installed and running without any issues, so what is causing this PlaySims version 8 to install so unbelievably slow?
I just hope when this the 'final disc' finishes installing probably in about 12 hours, I don't have any problems with FSX because of it.