I have checked in parts of the assembly infrastructure. you will see a new directory src/libFLAC/i386 where NASM files will reside. I haven't updated the build environment yet but if you want to take a look it shouldn't be too hard to fix up (right now I use Makefile.lite to do tests). So far there is just an assembly version of the autocorrelation routine (and it's not actually faster yet!) but it's out there for people to investigate. Josh __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/