Note that there are two different matching products: - iTunes Match: matches files by audio fingerprint and gives you 256k AAC unDRM'd files. If it doesn't mat

Note that there are two different matching products: - iTunes Match: matches files by audio fingerprint and gives you 256k AAC unDRM'd files. If it doesn't match, uploads files to "iTunes in the Cloud" digital locker feature (files may be converted to AAC prior to uploading). Costs in the order of 20-ish € a year. - Apple Music: matches files by audio fingerprint and gives you 256k AAC FairPlay-protected files. Can't recall if it uploads (I think it does?) and how it converts (might convert to FairPlay protected?). Both have song count limit (10k or something for iTunes in the Cloud), and they may differ (not sure, Apple Music may be higher). If you have both, iTunes Match applies.