I don't know of any sites off-hand where you could find them, but you could always rip them yourself with this tool: https://mega.nz/#!Ytt0HQzA!Ai55AXuQ7XKNGMJtirlKawvUJEHuP10GyTq2rNK_Dkk
The readme file within explains it, but you can simply drag and drop a selected game file (.player, .demo, .stage, etc.) into the extractor and it'll create a folder with all of the data inside that file.