No other files are missing. Just some songs and albums from itunes. And yes, the files are gone. If just the file was missing the itunes music list would have the red exclamation point by the file name. But, in this case, they are completely gone, not just the files, but the listing as well, meaning something in itunes deleted them entirely. I suppose it could be possible that I somehow might have accidently hit delete and then yes, and then remove from my computer and all that for a song or two (highly unlikely, but, I suppose possible). It is NOT likely that I would do this for whole albums.
This is not a case of a bad hard drive or something in OS X or whatnot. ITunes itself knows the files are completely gone, not just "missing" since I don't even have the red ! next to the names. And despite admitting it may be possible to accidently delete them, personally, I never delete music from ITunes. If I get tired of something, since I paid for it, I merely uncheck the playlist checkbox.
And while you state that you have not seen anyone else mention this, I found this forum searching google for missing songs and found other threads in this very forum saying exactly the same thing I am. They were closed as answered despite multiple people saying that they were having the problem and why was it marked as answered when it clearly wasn't? A little searching and you too can find these threads I am sure.
This is a real problem, not user error. I can't imagine with the volume of posts I've read that this is simply something with me alone, or bad hardware, or even an accidental delete here and there. There is more to it than that.
Something is up, and I am not sure what. I know Apple went through and deleted purchased music that had been hacked with JHymn or whatever back in the day? (Not 100% sure as I didn't use ITunes then, just remember friends talking about it.) Maybe this is something similar, only gone awry and deleting valid songs?
I don't know. I just know that ITunes is losing my music. Not just the files alone, but the entire song is gone as if it had never existed.
I just what to know what's up and why it happened and what they are doing to fix it (assuming it's not already fixed in the latest release).