Great program. I use it to manage the tags in all my music files. I have one small request regarding startup behaviour though.
I have my music files stored on both my computer hard drive and a NAS (network attached drive). Most of the time my NAS is asleep and the hard drive spun down. When I start the MP3Tag program however, it always accesses the NAS and causes the hard drive to spin up. I have set default startup directory to a local hard drive folder so i am not sure why the program needs to access the NAS.
If possible, I would prefer MP3Tag to not access my NAS until I expressly open a folder on the NAS. Just a small nuisance I know.