Eric.M wrote on Aug 27^th, 2012 at 5:31pm:

the 737 has TSS sound set i have the TSS set for the 707, they have a 727 set but its for FS9 and i dont know if it would be compatible or easy to convert.

I have the TSS engine soundpacks for the 767 (GE, PW and RR) which were made for FS9 and they work fine with the CS767 in FSX. I think that the soundpack for the 727 will also work fine in FSX as well. ;)