The Blu-Ray bandwagon has added an extra wheel to its cart having taken a battering from the delayed launch of the PS3. Sony's first disc drive burner is the tonic intended to bolster the campaign for hi-def hearts and minds. Blu-Ray burners have already found their way into Sony Vaios but the BWU-100A will enable PC makers and owners to add the 50GB disc-swallowing drives to their own units. Aimed squarely at Media Centers or video editing set-ups, each disc will swallow and spit out up to four hours of 1080i footage. A software upgrade will be required to play commercial copy-protected movies but Sony promises the update will be free. That said, there's no word on whether the update will be ready for the raft of releases due in November. The ball now passes to Toshiba to come back with its own hi-def burner. So far, its read-only HD-DVD drives have found their way into laptops but there's no writer to speak of. Expect a response shortly.