A question about real-time preview of DVDMaestro?

When using “DVDMaestro”, it points out " Real Time Preview functionality will not be available because no decoders have been detected ". (0x410a0011) ", Could you tell me how to solve this problem? Thanks in advance!

Install the CineMaster 2000 dvd player and that error will go.

Thanks a lot,the error has gone!