Apple has used the contentious US Digital Millennium Copyright Act to control Mac user's access to DVD authoring on a Mac.

CNet reports Apple's lawyers used the Act to stop US Macintosh dealer and developer Other World Computing selling a patch for iDVD. The patch allows users to burn DVDs on external (non-Apple-branded) DVD drives.

Other World Computing complied, removing the patch from sale on receipt of the complaint.

The report suggests Apple's move is intended to support its hardware sales – if iDVD is only useful on SuperDrive-equipped Macs, people may buy more of them.