I don't know if anyone else has had this problem, but I get a lot of files that aren't capitalized properly or at all and I use foobar to retag and rename them. When I retag a file and haven't changed anything except the capitalization and then use the masstagger to rename the file, it doesn't get renamed.

For instance I have the song "Beep Street" and I rename the file by the metadata's tracknumber and title, it should rename it to "02 - Beep Street.mp3," yet when I rename it it's still "02 - beep street.mp3." If I remove the file from foobar, close foobar, and rename it manually and then load foobar and add it back, it still shows the filename as it was before I fixed the capitalization. (Actually, sometimes it'll display the new filename and sometimes it won't.) If I change things beyond capitalization, then the file gets renamed properly.

Also, if I do anything involving printing filenames, such as writing a playlist, it'll write the old filenames instead of the new ones.

Seems to be a bug in masstagger, at least there were similar reports (this thread) about this disloyal behaviour.
I guess it gets fixed until next release.

Ah, didn't see that when I searched beforehand. I hope it gets fixed.

Seems to be a limitation of Windows. There's a workaround now mentioned in sPeziFisH's thread above.

I've had the same problem, but it's not specifically a Windows problem. Emacs under Windows, for instance, can rename files from lower- to upper-case, or vice-versa, and it always works.

So if I am renaming files within FB2K, with only a change in case, I will sometimes rename them to a different format (which forces the case change) and then to the format I really want. Only takes a second or two to do this. And since I use various naming schemes, there are always some to use in the history list in the mass-tagger.

The feature I *really* want is automated case changing for tags (which could then be used for the file names). It would have to be smart and do articles and prepositions correctly (including those in non-English languages )

Would be impossible in English, because sometimes things that aren't prepositions are spelled just like prepositions.

"Where's the Library At?" At is not a preposition in my book, because there's no noun-phrase following it. Those who say "You must not end a sentence with a preposition!" will get my retort of either "I said, where's the library at, dumbdumb?" or "You don't know what a preposition is, do you? Where'd you learn that at?"

"Turn Me On" On is not a preposition. Rather, it's a particle from a 'phrasal verb.'

You might want to point out that preposition-lookalikes at the end of English sentences should be capitalized. No go, because you can't easily figure out the end of an English sentence. "Turn Me On, Baby"

edit: Not to mention the case of "Turned on the Turntable" vs. "Turned On the Radio"

I disbelieve being a limitation of windows but I cannot give you a reasonable reason.
Other programs (for instance mp3tag) are able to do this quite fine, Idunno if they are writing a new file, delete the old one and change the new file to the wanted one (so they don't renaming directly - btw: I don't really if foo renames directly), but it still seems to work, the user got everything he needs.
FAT32, I don't have it but still have this problem, so I doubt FAT is involved.

Thanks for the workaround, I didn't think about 2-way-steps like this.

I don't think it has anything to do with FAT because I'm having this problem with NTFS.