Peace be upon you. According to Grand Ayatollah Sistani, the consent of the course owner is only relevant within the framework of laws that govern the rights of authors and publishers, which must be endorsed by the religious authority. He emphasizes that it is not permissible to violate these laws in Islamic countries. Additionally, if the action involves the owner's property, such as if the lecture is recorded on a disk owned by the lecturer, it is also not allowed. Grand Ayatollah Khamenei advises that it is obligatory to refrain from using intellectual products without the permission of their owners or without knowing their consent, even in this case. May you be successful in all good deeds.