13th June 2003 at 01:00
First came the floppy disk, then the CD-Rom and finally there was the DVD-Rom. Each successive technology allowed a leap in storage capacity; a floppy disk can hold a little over 1Mb of data, a CD-Rom around 650Mb and a DVD-Rom up to 4.7Gb. Now comes the next step. Sony is planning to launch PC drives that use blue laser technology. Blue lasers allow disk manufacturers to pack lots more data on a disk and the new drives will use disks that can store a whopping 23.3Gb of data. Sony says the new super-disks will be aimed initially at professional markets such as graphic design, audiovideo editing and medical imaging, all of which handle huge files. Doubtless there will be prices to match. However, business technology tends to filter down into the education and consumer markets over time and that has to be good news for all of us.


Log-in as an existing print or digital subscriber

Forgotten your subscriber ID?


To access this content and the full TES archive, subscribe now.

View subscriber offers


Get TES online and delivered to your door – for less than the price of a coffee

Save 33% off the cover price with this great subscription offer. Every copy delivered to your door by first-class post, plus full access to TES online and the TES app for just £1.90 per week.
Subscribers also enjoy a range of fantastic offers and benefits worth over £270:

  • Discounts off TES Institute courses
  • Access over 200,000 articles in the TES online archive
  • Free Tastecard membership worth £79.99
  • Discounts with Zipcar, Buyagift.com, Virgin Wines and other partners
Order your low-cost subscription today