I have RealTracks sets 1-66 on my hard drive in .wma format. I saw in the manual that BIAB has a function to convert them to .wav.
Since this conversion would take a long time, before I do it, what are the advantages? Will it decrease the time it takes to generate the real tracks for a song?

Related question: when you click "play" for a song, BIAB understandably takes some time to generate RealTracks and RealDrums. Is the PC's processor the limiting factor in how fast it can generate, whereby the faster the processor, the faster BIAB can generate? (If so, that would give me another reason to upgrade my old Pentium 4 3.2 GHz system.)