The copy was unlawfully made. In order to adhere to the copyright law, all items below, from Sec. 110 of the Copyright Law, must be followed:
If the showing is open to the public it is considered a performance and copyright permission or licensing must be obtained to have the showing. This applies even if admission fees are not charged. The group does not consist of class members, nor is it engaged in formal instruction, so the group must obtain copyright permission.
This is infringement. Some companies have a duplicate pricing structure where the higher price is for the purchase of one videotape and the right to produce a specific number of duplicate copies. Copying to change format (for example, copying from VHS to DVD) is also an infringement of copyright.
Public domain materials may be legally copied or transferred from one format to another if: