A compilation of the Document or its derivatives with other - separate and independent documents or works, in or on a volume of a - storage or distribution medium, does not as a whole count as a Modified - Version of the Document, provided no compilation copyright is claimed for - the compilation. Such a compilation is called an "aggregate", and this - License does not apply to the other self-contained works thus compiled - with the Document, on account of their being thus compiled, if they are - not themselves derivative works of the Document.
If the Cover Text requirement of section 3 is applicable to these - copies of the Document, then if the Document is less than one quarter of - the entire aggregate, the Document's Cover Texts may be placed on covers - that surround only the Document within the aggregate. Otherwise they must - appear on covers around the whole aggregate.