I tried encoding some files with a different application and they still have a problem with 2.2 tags. It looks like the files get copied over but sometimes they seem to then disappear. In a few cases they showed up in an incorrect artist category. When they do show up, the duration shows as -1.

The interesting thing is that I created some test files and tried converting them back and forth between tag versions. There was always a problem with v2.2 tags no matter how I got them to that version.

I emailed the test files to the address on your web site. I just noticed that you have a different address listed on this board. I'll send the files there too.