Hi,
some pics are more than one mb (from itunes eg) and these tend to make a real difference in music file size especially when mass tagging lots of albums with 'embed in file'
Music Bee 3; EAC; MP3Tag; Music on Synology NAS 115; Logitech Media Server on RPI 3; RPI 2 with Hifiberry; Poweramp for Android/Lineage