There are no .m4a files in that folder. There are 22 .bt1 files, but that's all.

There's also a second folder with almost the same name as the first one, but with "Direct Input" tacked onto the end. It also has 22 .bt1 files, and also 22 .flac files, but no .m4a files.

I clicked one of the Flac files, and it played properly via Audacity.

"If those files are somehow missing, this can be fixed by reinstalling the group of RealTracks sets that include RT set #309."

I'm not sure how to reinstall the relevant RealTracks sets. Please advise.

Lastly, I have the Audiophile edition, so I'm not sure why the .m4a files factor in here.

Thank you.