I am reencoding in high quality my CD collection.

I put my high quality and the I delete the olds.

With Ascending by track, I tried to set the Playlist order in Emplode and I couldn't change the place of a song in the Playlist.

I change to the ascending by Position and now I can change the playlist Order ..

Can someone explain me why ?
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Empeg IIa - 10 Gb - Red Fascia - Tuner, the day is coming - I Will Strike From the Grey -