It’s not just bitrate but how good the retail encode of a Blu-ray is. There are certain movies where a smaller bit-rated Blu-ray is actually the best option. Private trackers are filled with comparisons between all the available Blu-rays to figure out of which one is the best in terms of video/audio quality. Buying a Blu-ray may still not get you the best quality.
yea, I would just give Soulseek a try.