ZITAT(SABOTEN @ Mar 30 2012, 14:24)
I hope to drag and drop support for these extensions. Thanks.
as I haven't such files I cannot test it: have you tried to add these extensions to the list in Tools>Options>Tags?
This does no mean, though, that mp3tag can deal with the format. But it will show the files in the files list, if you drag&drop them from the explorer.