Hi Paul, thanks a bundle for that very definitive answer. I actually read something similar a while ago but frankly found it too hard to believe so dropped it for a while. Having a bit of time yesterday, I dug into it again and did some testing with various usb devices and hence my post. I missed the alphabetic element during my testing but in hindsight you are obviously right. I just loaded one album (Blondie - Parallel Lines) onto several usb ‘media’s’ and, again in hindsight, now remember that the album tracks were listed the same on all, confirming your point. What a staggeringly odd way of doing things!! Seems in keeping with some other elements of this, my first Lexus. 15 months into ownership and have to admit I preferred my 2019 BMW 5 series.
With 13,000 songs on a 128g usb stick, I may choose not to go the ‘prefix’ route!
Ah well, only 2.75 years of lease left…..
Thanks again for your diligence, and probably extreme patience, dealing with a major car co. !
Steve