The test results you have selected are very old and may not represent the current state of Wine.
Selected Test Results (selected in 'Test Results' table below)
What works
All tagging features
Rename file from tag
Update tag from file name
Getting album info from Amazon and from CDDB
What does not
Won't play selected files
Can't rename directories
Buggy tool tips prevent user from selecting the file easily - must click the little file icon on the left
What was not tested
All of the wizards
Genre list editor
All of the album image features
Additional Comments
I have been an avid user of the application for years, but I have never been able to get it to work well in Linux. There is no application, commercial or free, that I have found that compares (and I have looked).
