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aarond12

macrumors 65816
May 20, 2002
1,145
107
Dallas, TX USA
The database files that iTunes uses to store file information do get larger as you add more files, but it's a pretty compact database.

My iTunes library file is around 4.5MB right now, even with over 8000 songs in my collection.
 

R94N

macrumors 68020
May 30, 2010
2,095
1
UK
iTunes is generally bloated and slow regardless, at least for me anyway.
 
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