OK I'm gonna guess that my framerate is not being changed to 24.000 cause James said not to worry about that message. Without ReClock, I don't have any dropped/repeat frames nor audio sync problems. With it, I'll have to test again.
I knew that audio was not being changed, what I was wondering is what exactly does "system clock correction" does for the video. It's clearly correcting something. If I'm not having any trouble with it not correcting anything (no ReClock) then I wonder what the correction does.
You can either say "what you don't hear won't hurt you", or, as we are talking about HD bitstreaming, which is all about perfection, turn on logging, play a whole movie and look for drop/repeat entries in the log. Then you can decide if you think bitstreaming is better than decoding to PCM.
Sorry if you know all this already but, to see what system clock correction is all about, read the first few pages of the readme and also page 17. In many ways the readme is out of date, but in this area nothing really has changed. Essentially, it is replacing the standard reference clock, which is based on the audio clock and prioritises audio over smooth video, with a new reference clock based on the system clock but "synchronised" with the video clock, so, when there is any mismatch between the source frame rate and the refresh rate, smooth
video is now prioritised over perfect audio. In "normal" mode Reclock resamples audio to "make it fit", in "bitstreaming" mode it has to crudely drop or repeat audio packets. Now you are right, if all is working perfectly there is no need to correct anything and you will not notice the difference, with or without bitstreaming, with or without Reclock(!); Probably the standard clock accuracies have improved since Reclock was first conceived anyway. However, it is still true that,
when there is any conflict, standard Windows behaviour is to prioritise keeping audio in sync, without resampling, over smooth video. With Reclock the priority is smooth video, ideally with audio resampling to maintain sync. And sometimes you have no choice but to either resample of have many dropped frames e.g. 23.976fps @60Hz (not 59.940Hz) or 23.976fps @50Hz (e.g. blu-ray on a PAL display).