Hello, Thanks to some help from Marcus and Axel, I think I'm finally getting close to wringing some session info out of my cdrom drive. :-) I also have a nearly working ISO9660 fs module, and finishing it should be fairly straightforward. I'll post more news when I have some. It appears the the module emulator is not working quite right in instances where you have two (and probably more) modules of the same type. When testing the iso9660 fs module (alongside the bfs module), both modules are init'd and uninit'd initially when the list is created, but only the first one (bfs, in this case) is returned by read_next_module_name(), which then returns an error the second time it's called. I'll look into it more if I get sessions working. -Tyler