dfdisk is an utility that adds extra functionality to pkgsrc, allowing it to fetch distfiles from multiple locations. It currently supports the following methods: CD-ROM The program manages a CD database where every disk is matched to a series of distfiles. Whenever a distfile is requested, the program will check if it is known by the database and ask the user to place the needed disk in the drive. Network If a file is not found in the described database, the program fallbacks to the network, fetching the file from there (the usual method in pkgsrc). Support for more methods may be added in the future, like for DVD-ROM.