I performed testing on 4 types of CDs with different Pre-emphasis settings and I can (also) report TuneBrowser detected all variations properly (Default and new Track Q-Sub Code method). See blue text in the attached image.
This was especially true for 1 CD where the Pre-emphasis flag in the CD TOC does NOT match the Pre-emphasis flag in the Track (Q Sub-Code). CD by Toto ‘Hydra” See “CD Example 4” in the table.
I attach a summary (image) with reference CDs used for pre-emphasis detection.
Once again, thank you Tiki for this improvement to TuneBrowser 🙂