After installing Libreoffice 5.0.0.5 on Windows 10 (on both systems 32bit and 64bit) I had some cashes and i suspect the mediaplayer. To reproduce these crashes: Open the gallery. Choose the folder of sounds and dubble click on a sound. On Win10 64bit Libreoffice crashes immediately. On a win10 32bir system libreoffice crashes by closing the madiaplayer.
*** This bug has been marked as a duplicate of bug 93491 ***