I always shrink the main movie m2ts file using tsremux, keeping the Video track & highest quality audio track only, then play back with nero showtime v126.96.36.199 from hard drive. With the new v188.8.131.52 m2ts files with DTS, DTS-HD, wont open any more. So I went back to the old version v184.108.40.206 all m2ts audio tracks work now except for TrueHD. TrueHD audio will not work with nero showtime from a shrinked m2ts file, never has. I even tried to shrink the m2ts file by using TSREMUX and convert the m2ts file to blu-ray format and open with powerdvd v7.3.3319a from folder. But the TrueHD track will only play with 2.0 channels in powerdvd. Nero has a new DTS plugin I purchased the DTS plug-in and it did not help m2ts playback with v220.127.116.11. This plug-in does not apply if you have already have the Blu-ray video plug-in, by not knowing this Nero refunded my money this morning.