I wonder how the number's calculated?
Most players settle for the NTSC number I think. I guess the fairest method on PC is to just use the average of those two numbers =] There is only one or two 'finetune' values differance between PAL and NTSC, so I guess the average would be no more than 1 finetune value, unless there're really long samples being played (impossible on old .mod format anyway) the differance is negligable.