I also don't have BluRay, so I can't test it. I'll check SMC folder. You did not answer me. Do you mean on NScCoreComponents folder? Cheers Yes, I meant the NScCoreComponents. I just deleted the files (except for the manifest) from my installation and it works fine. Which files could you not delete? Most everything in the SMC folder can be deleted. If you plan on making audio cds from mp4/m4a files, you will need to keep ndaudio.dll (and APM_NeroDigital.dll in AudioPlugins). Otherwise, you can delete that too. I just discovered that you also need NeESParser.ax (not included in your Lite distro) and NeAudio2.ax if you want to burn FLAC files to an audio CD. Unlike Nero v8, most of the dlls don't need to be registered. Only advrcntr4.dll appears to be necessary so you can save a lot of registry clutter by registering only the essentials. Even NeroAPI doesn't need registration, unless you want to use it for burning with third party apps like UltraISO.