I have a fairly large library (local drive) which has many FLAC files in it. It takes quite a while for the items to be added to the library. I can play the files, etc however after a certain point adding files, it crashes. Thereafter everytime I restart WMP, It will keep adding files for several minutes then crash again. I then delete the library through Windows Media Player Library troubleshooter or other means. After it runs for a while again it seems to get to a certain point and same thing all over again. Does anyone have a large library w/ FLAC running successfully in these versions of 10? I'm wondering if it's my computer or not. I have a mirror image of the music on a WD Cloud HD, use that instead of local, but same thing happens. BTW On previous versions of Windows (8.1 and back), I used WMP Tag Plus and different FLAC decoders and although it would crash a couple times initially when building the library, it would eventually complete and work. I also used the old version - WMP Tag Support Extender - on an earlier pre-FLAC supported version of 10 preview (the new WMP Tag Plus versions wouldn't work at all), however I can't remember if it kept crashing.