first of all, I really like your app.
Still, anything can be improved.. here are some things I think could make your app better.

1. more powerful search
right now, the search function is quite limited.. I would like to be able to search for an artist/track/any field in combination with other fields.. for example 'give me all jazz records on cd from 1960-1980'.

2. more genres
Only 11 genres? please... this *sucks*.
Just because CDDB/FreeDB only supports a handfull of genres doesnt mean you (and your users) have to limit themselves to those.

3. web export
Would be nice to be able to export your whole database with cover and all to external html files (and jpegs for covers) so you can put them online. This shouldnt be too hard, as you're using html anyways (i think).

One other thing I noticed.. whenever I use navigate->view in browser when viewing a list of albums, IE crashes..
Only web-viewing of single albums works ok.

4. date pulldown
Kinda strange this is missing..
From the content menu pulldown, i'd like to be able to select the release date as a starting point for my browsing.

Alright.. thats about it I guess..

later,
Bas