With the bulk of Blu-ray writers launching at 2x write
speeds, a higher speed media seems a little premature. However, TDK brought Blu-ray
media rated at 6x to the 8th Annual Data Storage Expo in Japan and expects
to launch media rated at 4x before the end of 2006.
The 6x media is a single layer 25GB Blu-ray disc which probably won't reap
benefits until 6x drives come out. We are guessing we won't see 6x drives until
at least later this year or early 2007 given the launch trends of previous
TDK was also showing off 100GB Blu-ray media
which we reported on back in April. The 100GB media uses a 4-layer process
which has spacer layers between. TDK's latest trend graph shows a maximum speed
of 4x for 100GB media.
TDK did again hint at 200GB media on that same trend graph which also shows a
6x write speed. The 200GB media is an 8-layer media on a single side. We
probably won't see that density for another year or two so we’ll have to be
satisfied with the current 25GB/50GB capacities.
quote: Actually, almost all studio-release DVDs produced in the past few years have used dual-layer media. DVD-9 just hasn't caught on in the mainstream recordable market because of its price.