How can one dispose of CDs containing Quranic verses after copying them, and is it permissible to discard them, or would that be considered a desecration of their content?

CDs containing the Quran do not take on the full ruling of a Mushaf (definition) (physical copy of the Quran), but they should be protected from anything that would degrade them. It is not permissible to destroy functional CDs, as this constitutes a waste of money; instead, they can be gifted to someone who would benefit from them. If they are not functional, then the preferable approach is to dispose of them in a way that safeguards them from degradation.