Any ideas as to why these albums won't sort properly?

Hi all.

Here is a screen shot of a page in my Foobar2000 mobile app:

[ATTACH=CONFIG]2607[/ATTACH]

As you can see, after the first couple of entries, I have two complete Ring Cycles, conducted by Furtwängler. Alphabetically, they should sort by the Milan one followed by the RAI one.

So, alphabetically, it should go:

07-10: Ring, Furtwängler Milan, 01...
07-10: Ring, Furtwängler Milan, 02...
07-10: Ring, Furtwängler Milan, 03...
07-10: Ring, Furtwängler Milan, 04...
07-10: Ring, Furtwängler RAI, 01...
07-10: Ring, Furtwängler RAI, 02...
07-10: Ring, Furtwängler RAI, 03...
07-10: Ring, Furtwängler RAI, 04...

This is how it sorts in iTunes, but for some reason, Foobar is putting them:

07-10: Ring, Furtwängler Milan, 01...
07-10: Ring, Furtwängler RAI, 01...
07-10: Ring, Furtwängler RAI, 02...
07-10: Ring, Furtwängler RAI, 03...
07-10: Ring, Furtwängler RAI, 04...
07-10: Ring, Furtwängler Milan, 02...
07-10: Ring, Furtwängler Milan, 03...
07-10: Ring, Furtwängler Milan, 04...

I've posted this on the Foobar support page, but I remember when I posted here about a "Grouping" entry that started appearing in iTunes & it turned out that iTunes was interpreting the "Style" tag from dBpoweramp & sticking it in the "Grouping" column, (which was easily solved by removing the "Style" tags before ripping the CD), so I thought someone hereabouts might be able to shed some light on my current predicament.

I can't find any other information (including sort fields) that is contained within the tags for the files so I'm a bit stuck.

Can anyone think of anything else that might be causing these albums to sort incorrectly in the Foobar2000 Mobile App?

Thanks.

Perhaps there is a double space between Furtwängler RAI

[QUOTE=Spoon;195971]Perhaps there is a double space between Furtwängler RAI[/QUOTE]

I've no doubt it will be something dumb like that, but no. No double spaces.

In case it's of any interest/help, here are some screen grabs from the "edit tags with dBpoweramp" window...

In the order they sort in Foobar...

The opera that comes first (Milan): [ATTACH=CONFIG]2613[/ATTACH]

The opera that comes second (RAI): [ATTACH=CONFIG]2614[/ATTACH]

The opera that comes third (RAI): [ATTACH=CONFIG]2615[/ATTACH]

The opera that comes sixth (Milan): [ATTACH=CONFIG]2616[/ATTACH]

Of course, they sort correctly in iTunes, so I'm clueless.

I'm gonna check the basics again.