CORRECTION: Beatport Pro for Mac DOES write ID3 tags.
The program doesn’t automatically update ID3 tags. But by right-clicking, choosing Synch/Write Metadata, the ID3 tags are updated. If multiple file are selected, it will update tags for the selected files.
My sincere apologies for the previous misinformation.
-Steve Glen
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And all this time I thought I thought I was writing data to the actual mp3 files. whoops, my bad, I guess.
Sure would be a nice feature.