Converting .bnk files to .m2ts format.
Converting Bink Video files directly to Blu-ray BDAV Video Files (.bnk to .m2ts conversion) should be possible and straightforward.
Use one of several currently available video editing programs or converters, such as Freemake Video Converter.
Alternatively, you can try some online conversion tools, which allow users to easily convert .bnk to .m2ts.