problematic in some jurisdictions (for instance the law of Germany), there are also licenses granting PD-like rights, for instance the CC0 or WTFPL. Ownership vs. licensing Many proprietary or open source software houses sell the software copy with a license to use it. There is no transferring of ownership of the good to the user, who does not have the warranty of a for-life availability of the software, nor are they entitled to sell, rent, give it to someone, copy or redistribute it on the Web. License terms and conditions may specify further legal clauses that users cannot negotiate individually or by way of a consumer organization, and can uniquely accept or refuse, returning the product back to the vendor. This right can be effectively applied where the jurisdiction provides a mandatory time for the good decline right after the purchase (as in the European Union law), or a mandatory public advertisement of the license terms, so as to be made readable by users before their purchasing. In the United States, Section 117 of the Copyright Act gives the owner of a particular copy of software the explicit right to use the software with a computer, even if use of the software with a computer requires the making of incidental copies or adaptations (acts which could otherwise potentially constitute copyright infringement). Therefore, the owner of a copy of computer software is legally entitled to use that copy of software. Hence, if the end-user of software is the owner of the respective copy, then the end-user may legally use the software without a license from the software publisher. As many proprietary "licenses" only enumerate the rights that the user already has under , and yet proclaim to take rights away from the user, these contracts may lack consideration. Proprietary software licenses often proclaim to give software publishers more control over the way their software is used by keeping ownership of each copy of software with the software publisher. By doing so, Section 117 does not apply to the end-user and the software publisher may then compel the end-user to accept all of the terms of the license agreement, many of which may be more restrictive than copyright law alone. The form of the relationship determines if it is a lease or a purchase, for example UMG v. Augusto or Vernor v. Autodesk, Inc. The ownership of digital goods, like software applications