Yikes. I’m using tracks with a length of 2-4 minutes (and they are all finished already), so as you say, chopping them up won’t work.
You said the RT decoding issue was in 4.7, has it been fixed/improved in later versions? And this is also the reason why with >5s tracks NotifyFinished is called half a sec too early - any way around that?
Thanks again for your detailed answers, much appreciated!