dvd+rw-tools (also known as growisofs, its main part) is a collection of open-source DVD and Blu-ray Disc tools for Linux, OpenBSD, NetBSD, FreeBSD, Solaris, HP-UX, IRIX, Windows and OS X. dvd+rw-tools does not operate on CD media.
Further it can burn preformatted data images onto the media, not needing any ISO 9660 formatter program for this task.
growisofs employs a Ring Buffer in userspace to smoothen the data transmission to the drive.
Deactivating it can be desirable to save time while mass-producing physical copies of data, given that errors are highly unlikely to occur on new blank media from a reputable brand.
Example usage: In this example, a file system is generated "on the fly", meaning in real time during the writing process.
Without this option, growisofs will refuse to write data if it estimates the selected files exceed the size of the disc.