Mr. Rheault, who specializes in collectives, could tell you more about this than me.
If private copying were to apply to all media, fees would be collected on the sale of those media. The fees would be redistributed to right holders through collectives. That's a well-known mechanism that has been working for a long time.
Today, private copying is practically dead because it applies only to CDs and cassettes. We all agree that cassettes have become completely obsolete. The relevant legislation should be modernized.