Stop foobar2000 from grouping together MP3 and FLAC files on the album list

I don't believe there's a way to change that (indeed, the thing appears to be completely portable), but if you're on Windows Vista, or 7, you can use symbolic links to perform this task. I'll use the example of dropbox, because that's what I do:

1)Change the config directory to the application directory. Move the config file into your \My Dropbox folder (with foobar off)
2)Go to a command line and cd into your foobar2000 directory.
3)Run mklink /H foobar2000.cfg "c:\path\to\your\my dropbox\folder\foobar2000.cfg" 4)Start foobar, everything should work fine.

This works for any file, and mklink /J does the same for any folder. Symlinks are like shortcuts that nobody can tell are shortcuts, and combined with something like dropbox they're perfect. There IS still a file messing up your hard drive to link to it, but that's a necessary evil (and you could try attr +s +h foobar2000.cfg on the symlink itself, to hide it from most file views)

Look for a checkbox in the preferences labeled album selection playlist, iirc.

You might want to look into the facets component too. It's very nice for browsing through your collection and introduces the old autoplaylists functionality.

From Foorbar 2000 FAQ:

Why is Autoplaylist Manager no longer maintained? In foobar2000 0.9.5 or newer, you can create autoplaylists by right-clicking an Album List branch. In order to create a query-based autoplaylist using Album List, use the 'filter' box to enter a query and create an autoplaylist from the 'All Music' item.